Hietanen, Anna and Erd, R.C. (1978), Ferroaxinites from the Feather River area, northern California, and from the McGrath and Russian Mission quadrangles, Alaska. USGS Jour. Res.: 6: 605

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Bariopharmacosiderite

Formula: Ba_0.5Fe³⁺₄(AsO₄)₃(OH)₄ · 5H₂O

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

King, Vandall T., Robinson, George W. (1993) What's New in Minerals? - Annual World Summary of Mineral Discoveries, April 1992 through April 1993. The Mineralogical Record, 24 (5) 381-394

ⓘ Baryte

Formula: BaSO₄

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

ⓘ Beidellite

Formula: (Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O

Locality: Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Colour: Gray

Description: Occurs as microscopically crystalline masses in cavities in veins of the district.

References:

Ferguson, Henry G. & R.W. Gannett (1932), Gold quartz veins of the Alleghany district, California: USGS PP 172: 45

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

Locality: Oriental Mine (Alta Mine), 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Calcite

Formula: CaCO₃

Localities: Reported from at least 6 localities in this region.

ⓘ Chalcocite

Formula: Cu₂S

Locality: Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs in very minor amounts.

References:

MacBoyle, Errol (1920b), Mines and mineral resources of Sierra County: Calif. In. Bureau Report 16, 144 pp. (published as separate chapter): 4

Murdoch, Joseph; Webb, Robert Wallace (1966) Minerals of California, Centennial Volume (1866-1966) - California Division of Mines and Geology, Bulletin 189. California Division of Mines and Geology. 559 pp.

ⓘ Chalcopyrite

Formula: CuFeS₂

Localities: Reported from at least 7 localities in this region.

ⓘ 'Chlorite Group'

Localities:

Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Rising Sun Mine (Cedar & Baltimore; Monroe; Monroe Consolidated group; Monroe Cons. group; Cedar claim; Baltimore claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Sierra Iron Mine (Sierra Mine; Sierra Iron Co.; Lake Hawley and Spencer Lake deposit), Hawley Lake, Sierra City Mining District, Sierra County, California, USA
16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Minnie D Extension Mine, Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Chromite

Formula: Fe²⁺Cr³⁺₂O₄

Localities: Reported from at least 17 localities in this region.

ⓘ Chrysotile

Formula: Mg₃(Si₂O₅)(OH)₄

Localities:

Unnamed Asbestos occurrence, Goodyears Bar, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine), Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs as fibers 5 to 6 inches (12.5 to 15 cm) long.

ⓘ 'Clay minerals'

Locality: Unnamed Clay prospect [1], Grizzly Gulch, Pike Mining District, Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Clinochlore

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

Locality: Oxford Mine (Oxford Mine and mill; Oxford lease and mill; Becky; Case and Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 claim; Milton claim), Downieville, Downieville Mining District, Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Clinochlore var. Pennine

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Clinoclase

Formula: Cu₃(AsO₄)(OH)₃

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

King, Vandall T., Robinson, George W. (1993) What's New in Minerals? - Annual World Summary of Mineral Discoveries, April 1992 through April 1993. The Mineralogical Record, 24 (5) 381-394

ⓘ Cornwallite

Formula: Cu₅(AsO₄)₂(OH)₄

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

King, Vandall T., Robinson, George W. (1993) What's New in Minerals? - Annual World Summary of Mineral Discoveries, April 1992 through April 1993. The Mineralogical Record, 24 (5) 381-394

ⓘ Covellite

Formula: CuS

Locality: Black Jack Mine, Kanaka Creek, Pike Mining District, Sierra County, California, USA

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 162.

ⓘ Cuprotungstite

Formula: Cu₂(WO₄)(OH)₂

Locality: Crystal Peak Mine (Crystal Mine; Quartz Knob occurrence; Unnamed Quartz mine [1]), Quartz Knob, Dog Valley Mining District, Sierra County, California, USA

Colour: Yellowish green

Description: Occurs as waxy masses of material in massive quartz.

References:

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Dawsonite

Formula: NaAlCO₃(OH)₂

Habit: Fibrous

Colour: Pale green or tan tint

Description: Occurs as clusters of minute fibers as daughter products in fluid inclusions of gold-quartz veins. Individual crystals 5-20 microns long and 1 to 3 microns thick, although some as large as 200 x 5 microns noted.

References:

Ferguson, Henry G. & R.W. Gannett (1932), Gold quartz veins of the Alleghany district, California: USGS PP 172: 45

Coveney, R.M. & W.C. Kelly (1971), Dawsonite as a daughter mineral in hydrothermal fluid inclusions: Contributions to Mineralogy and Petrology: 32: 334-342, 335

STEVENSON, J.S., STEVENSON, L.S. (1977) Dawsonite-fluorite relationships at Montreal-area localities. The Canadian Mineralogist, 15, 117-120.

Coveney, Raymond M. (1981) Gold quartz veins and auriferous granite at the Oriental Mine, Alleghany District, California. Economic Geology, 76 (8) 2176-2199 doi:10.2113/gsecongeo.76.8.2176

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Dolomite

Formula: CaMg(CO₃)₂

Localities:

Sierra Iron Mine (Sierra Mine; Sierra Iron Co.; Lake Hawley and Spencer Lake deposit), Hawley Lake, Sierra City Mining District, Sierra County, California, USA
Oriental Mine (Alta Mine), 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Tightner Mine (Tightner Mines), 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Minnie D & Lucky Larry Mine (Minnie D and Lucky Larry; Minnie D claim; Lucky Larry claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Enargite

Formula: Cu₃AsS₄

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

Locality: 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ 'Fayalite-Forsterite Series'

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Ferrimolybdite

Formula: Fe₂(MoO₄)₃ · nH₂O

Locality: Sierra Buttes Mine (Sierra City Mine; Bigelow Mine; Buttes Union Mine; Ariel Independence Mine; Ariel vein; Whiskey vein; Smith vein), Sierra City, Sierra City Mining District, Sierra County, California, USA

Description: Occurs in Cu ores.

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 186.

ⓘ Galena

Formula: PbS

Localities: Reported from at least 17 localities in this region.

Description: Occurs as masses in a limestone cave.

ⓘ Graphite

Formula: C

Localities:

Hope Mine (Minnesota Development Group), Minnesota Flat, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Hope claim, Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Pacific Alta Group Mine (Pacific Alta Gp.), Saint Louis (St Louis), Port Wine Mining District, Sierra County, California, USA
16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Minnesota Development Group Mine (Minnesota Development Gp.), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs as graphitic clay in gouge.

ⓘ Hematite

Formula: Fe₂O₃

Locality: Four Hills Mine, Hawley Lake, Sierra City Mining District, Sierra County, California, USA

Description: Pure and abundant.

References:

Browne, J.R. (1869), Report of J. Ross Browne on the mineral resources of the states and territories west of the Rocky Mountains (US Treasury Department), 674 pp., H.H. Bancroft and Co., San Francisco [reprint of 2]: 222

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 217

ⓘ Hematite var. Specularite

Formula: Fe₂O₃

Locality: Four Hills Mine, Hawley Lake, Sierra City Mining District, Sierra County, California, USA

Description: Pure and abundant.

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 217

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca₂(C²⁺₄C³⁺)(AlSi₇O₂₂)W₂

Locality: Minnie D Extension Mine, Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Habit: "Needle" crystals.

Description: Occurs in a amphibolite schist.

ⓘ Jamesonite

Formula: Pb₄FeSb₆S₁₄

Localities:

Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine), Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Habit: Acicular

Description: Occurs in vugs in quartz as small needles and clusters.

ⓘ 'Limonite'

Localities:

Rao Mine, Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Sherman Mine (General Sherman), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Minnie D & Lucky Larry Mine (Minnie D and Lucky Larry; Minnie D claim; Lucky Larry claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Gold Crown Mine (Wonder Mine; Sherman Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Magnesiochromite

Formula: MgCr₂O₄

Localities:

Gibsonville property (Six 6 claims), Gibsonville, Gibsonville Mining District, Sierra County, California, USA
White Bear Mine (Unnamed Cr-Au Mine [1]), Fir Cap, Downieville Mining District, Sierra County, California, USA
Macchaus Mine, Mack House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Oxford Mine (Oxford Mine and mill; Oxford lease and mill; Becky; Case and Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 claim; Milton claim), Downieville, Downieville Mining District, Sierra County, California, USA

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Localities:

Red Ledge Mine (Bank Mining Company), Mack House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Unnamed Magnetite occurrence [1], Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Sierra Iron Mine (Sierra Mine; Sierra Iron Co.; Lake Hawley and Spencer Lake deposit), Hawley Lake, Sierra City Mining District, Sierra County, California, USA
Unnamed Magnetite occurrence [2], Spencer Lakes, Sierra City Mining District, Sierra County, California, USA

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

Locality: Sierra Homestake Mine, Bassetts, Sierra City Mining District, Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Marcasite

Formula: FeS₂

Localities:

Sierra Buttes Mine (Sierra City Mine; Bigelow Mine; Buttes Union Mine; Ariel Independence Mine; Ariel vein; Whiskey vein; Smith vein), Sierra City, Sierra City Mining District, Sierra County, California, USA
16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Uncle Sam Mine (Verrue; Keller; Yates; Simpson; North Fork Mine; Wisconsin Extension; Wisconsin Ext), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA ? (more information)

ⓘ 'Margarodite'

Locality: Unspecified Mica occurrence [1], Table Rock, Howland Flat, Poker Flat Mining District (Table Rock Mining District), Sierra County, California, USA

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 275

ⓘ 'Mica Group'

Locality: 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Molybdenite

Formula: MoS₂

Description: Occurs in Cu ore.

References:

Browne, J.R. (1869), Report of J. Ross Browne on the mineral resources of the states and territories west of the Rocky Mountains (US Treasury Dept.), 674 pp., H.H. Bancroft and Co., San Francisco [reprint of 2]: 210

Burkart, H. J. (1869), Der Mineralreichthum Californiens und der angrenzenden Staaten und Territorien: Berg- u. hüttenm Zeit., Band 28: 21

ⓘ Molybdite

Formula: MoO₃

Description: Occurs in Cu ore.

References:

Burkart, H. J. (1869), Der Mineralreichthum Californiens und der angrenzenden Staaten und Territorien: Berg- u. hüttenm Zeit., Band 28: 21

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Localities: Reported from at least 14 localities in this region.

ⓘ Muscovite var. Mariposite

Formula: K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂

Localities: Reported from at least 12 localities in this region.

ⓘ Muscovite var. Phengite

Formula: KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂

Localities: Reported from at least 12 localities in this region.

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Localities:

Maryland Mine, Minnesota Flat, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Native Bismuth

Formula: Bi

Locality: Unnamed Bi occurrence [1], Slug Canyon, Downieville, Downieville Mining District, Sierra County, California, USA

Description: Represented in the Stanford University collection.

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 106

ⓘ Native Copper

Formula: Cu

Locality: Basset Pride prospect (Bassetts' Pride Mine), Bassetts, Sierra City Mining District, Sierra County, California, USA

References:

MacBoyle, Errol (1920b), Mines and mineral resources of Sierra County: Calif. In. Bureau Report 16, 144 pp. (published as separate chapter): 30

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Native Gold

Formula: Au

Localities: Reported from at least 386 localities in this region.

ⓘ Native Silver

Formula: Ag

Localities:

Gold Point Mine (Gray Eagle), China Flat, Downieville Mining District, Sierra County, California, USA
Kate Hardy Mine (Hawn Mine; Derelict Mine; Kate Hardy Mine and mill), Old Mountain House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Native Sulphur

Formula: S₈

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

Locality: Herkin's Ranch, Sierra County, California, USA

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 277

ⓘ Olivenite

Formula: Cu₂(AsO₄)(OH)

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

King, Vandall T., Robinson, George W. (1993) What's New in Minerals? - Annual World Summary of Mineral Discoveries, April 1992 through April 1993. The Mineralogical Record, 24 (5) 381-394

ⓘ Opal

Formula: SiO₂ · nH₂O

Locality: 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Palygorskite

Formula: ◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O

Locality: Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine), Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs as tough, felt-like sheets filling small veins.

References:

Ferguson, Henry G. & R.W. Gannett (1932), Gold quartz veins of the Alleghany district, California: USGS PP 172: 13

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

ⓘ Paragonite

Formula: NaAl₂(AlSi₃O₁₀)(OH)₂

References:

Coveney, Raymond M. (1981) Gold quartz veins and auriferous granite at the Oriental Mine, Alleghany District, California. Economic Geology, 76 (8) 2176-2199 doi:10.2113/gsecongeo.76.8.2176

ⓘ Parsettensite

Formula: (K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O

Locality: Monumental Mine, Grass Flat, Port Wine Mining District, Sierra County, California, USA

References:

Mike Scott S105697 from Cureton FWZ ID A Roberts

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

Locality: 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ 'Petrified Wood'

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282

ⓘ Pharmacoalumite

Formula: KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

King, Vandall T., Robinson, George W. (1993) What's New in Minerals? - Annual World Summary of Mineral Discoveries, April 1992 through April 1993. The Mineralogical Record, 24 (5) 381-394

ⓘ Pyrite

Formula: FeS₂

Localities: Reported from at least 39 localities in this region.

ⓘ Pyrrhotite

Formula: Fe_1-xS

Locality: Lost Cabin prospect, Sierra County, California, USA

References:

ⓘ Quartz

Formula: SiO₂

Localities: Reported from at least 245 localities in this region.

ⓘ Quartz var. Chalcedony

Formula: SiO₂

Localities:

Evans prospect (Oak), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Roye-Sum Mine, Mack House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Oak Mine (Evans Mine), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Rutile

Formula: TiO₂

Localities:

Uncle Sam Mine (Verrue; Keller; Yates; Simpson; North Fork Mine; Wisconsin Extension; Wisconsin Ext), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine), Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Oriental Mine (Alta Mine), 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs as small needles.

ⓘ Scheelite

Formula: Ca(WO₄)

Locality: Crystal Peak Mine (Crystal Mine; Quartz Knob occurrence; Unnamed Quartz mine [1]), Quartz Knob, Dog Valley Mining District, Sierra County, California, USA

References:

A former silica occurrence/mine and Cu-W occurrence. MRDS data.

ⓘ Scorodite

Formula: Fe³⁺AsO₄ · 2H₂O

Locality: Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

Lindgren, Waldemar (1911), The Tertiary gravels of the Sierra Nevada of California: USGS pp 73, 226 pp.: 52

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 333.

ⓘ Segnitite

Formula: PbFe³⁺₃AsO₄(AsO₃OH)(OH)₆

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

References:

Ron Layton Collection

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

Localities: Reported from at least 19 localities in this region.

ⓘ Siderite

Formula: FeCO₃

Localities:

Minnie D & Lucky Larry Mine (Minnie D and Lucky Larry; Minnie D claim; Lucky Larry claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Wonder Mine, Chips Flat, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Gold Crown Mine (Wonder Mine; Sherman Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

Description: Occurs as crystals on faces of Quartz crystals.

ⓘ Sphalerite

Formula: ZnS

Localities:

Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA
Gold Canyon Mine, Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Minnie D & Lucky Larry Mine (Minnie D and Lucky Larry; Minnie D claim; Lucky Larry claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine), Plumbago, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Kate Hardy Mine (Hawn Mine; Derelict Mine; Kate Hardy Mine and mill), Old Mountain House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Stibnite

Formula: Sb₂S₃

Locality: Downieville, Downieville Mining District, Sierra County, California, USA

Description: Occurs with gold ores in local mines.

References:

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 351.

ⓘ Stromeyerite

Formula: AgCuS

Locality: 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

Murdoch, Joseph, Webb, Robert Wallace (1966) Minerals of California - Centennial Volume (1866-1866) Bulletin 187. California State Mining Bureau

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

Localities: Reported from at least 12 localities in this region.

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

Localities:

Minnie D & Lucky Larry Mine (Minnie D and Lucky Larry; Minnie D claim; Lucky Larry claim), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Eldorado Mine (Terrible; Eldorado Extension; Eldorado Ext), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Kate Hardy Mine (Hawn Mine; Derelict Mine; Kate Hardy Mine and mill), Old Mountain House, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ Tremolite

Formula: ◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

Locality: Rainbow Mine, 16 to 1 Mine (Sixteen-to-One Mine; Original Sixteen-to-One Mine), Alleghany, Alleghany Mining District (Forest Mining District), Sierra County, California, USA

References:

Ferguson, Henry G. (1914b), Lode deposits of the Alleghany district, California: USGS Bulletin 580: 153-182

ⓘ Uvarovite

Formula: Ca₃Cr³⁺₂(SiO₄)₃

Localities:

Milton claim (Redmayne and McGonigal prospect), Sierra City, Sierra City Mining District, Sierra County, California, USA
Doriss Mine (Dorriss; Chrome F N; Chrome P N), Forest, Alleghany Mining District (Forest Mining District), Sierra County, California, USA
Oxford Mine (Oxford Mine and mill; Oxford lease and mill; Becky; Case and Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 claim; Milton claim), Downieville, Downieville Mining District, Sierra County, California, USA
Alleghany Mining District (Forest Mining District), Sierra County, California, USA

ⓘ 'Wad'

Localities:

ⓘ Wollastonite

Formula: Ca₃(Si₃O₉)

Locality: Unnamed Wollastonite occurrence [1], Sierra City, Sierra City Mining District, Sierra County, California, USA

Description: Occurs as bands and as wollastonite-quartz schist.

References:

Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.

✪ Zircon

Formula: Zr(SiO₄)

Locality: Antelope Neck Mine (Antelope Mine), Loyalton, Sierra County, California, USA

Description: As microscopic pink crystals associated with Quartz, Sphalerite and Enargite in vugs in Quartzite matrix.

References:

Ron Layton Collection

Gallery:

FeAsSⓘ Arsenopyrite

Arsenopyrite

Sierra County, California, USA

Arsenopyrite

Sierra County, California, USA

Arsenopyrite

Sierra County, California, USA

Auⓘ Native Gold

Native Gold

Oriental Mine, 16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

Red Ledge Mine, Mack House, Alleghany Mining District, Sierra County, California, USA

Native Gold

Oriental Mine, 16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

Red Ledge Mine, Mack House, Alleghany Mining District, Sierra County, California, USA

Native Gold

Oriental Mine, 16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

Native Gold, etc.

16 to 1 Mine, Alleghany, Alleghany Mining District, Sierra County, California, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Native Silver	1.AA.05	Ag
ⓘ	Native Bismuth	1.CA.05	Bi
ⓘ	Graphite	1.CB.05a	C
ⓘ	Native Sulphur	1.CC.05	S₈
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Stromeyerite	2.BA.40	AgCuS
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Covellite	2.CA.05a	CuS
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Stibnite	2.DB.05	Sb₂S₃
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
ⓘ	Jamesonite	2.HB.15	Pb₄FeSb₆S₁₄
ⓘ	Enargite	2.KA.05	Cu₃AsS₄
Group 4 - Oxides and Hydroxides
ⓘ	Chromite	4.BB.05	Fe²⁺Cr³⁺₂O₄
ⓘ	Magnesiochromite	4.BB.05	MgCr₂O₄
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	var. Specularite	4.CB.05	Fe₂O₃
ⓘ	Quartz var. Chalcedony	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Molybdite	4.E0.10	MoO₃
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
ⓘ	Dawsonite	5.BB.10	NaAlCO₃(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Alunite	7.BC.10	KAl₃(SO₄)₂(OH)₆
ⓘ	Scheelite	7.GA.05	Ca(WO₄)
ⓘ	Cuprotungstite	7.GB.15	Cu₂(WO₄)(OH)₂
ⓘ	Ferrimolybdite	7.GB.30	Fe₂(MoO₄)₃ · nH₂O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Olivenite	8.BB.30	Cu₂(AsO₄)(OH)
ⓘ	Cornwallite	8.BD.05	Cu₅(AsO₄)₂(OH)₄
ⓘ	Clinoclase	8.BE.20	Cu₃(AsO₄)(OH)₃
ⓘ	Segnitite	8.BL.10	PbFe³⁺₃AsO₄(AsO₃OH)(OH)₆
ⓘ	Scorodite	8.CD.10	Fe³⁺AsO₄ · 2H₂O
ⓘ	Bariopharmacosiderite	8.DK.10	Ba_0.5Fe³⁺₄(AsO₄)₃(OH)₄ · 5H₂O
ⓘ	Pharmacoalumite	8.DK.12	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
Group 9 - Silicates
ⓘ	Chrysotile	9.00.	Mg₃(Si₂O₅)(OH)₄
ⓘ	Uvarovite	9.AD.25	Ca₃Cr³⁺₂(SiO₄)₃
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Axinite-(Fe)	9.BD.20	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Tremolite	9.DE.10	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
ⓘ	Wollastonite	9.DG.05	Ca₃(Si₃O₉)
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Paragonite	9.EC.15	NaAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Muscovite var. Phengite	9.EC.15	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Mariposite	9.EC.15	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
ⓘ	Beidellite	9.EC.40	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
ⓘ	Clinochlore	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	var. Pennine	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	Palygorskite	9.EE.20	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
ⓘ	Parsettensite	9.EG.40	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
Unclassified
ⓘ	'Amphibole Supergroup'	-	AB₂C₅(T₈O₂₂)W₂
ⓘ	'Asbestos'	-
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Clay minerals'	-
ⓘ	'Limonite'	-
ⓘ	'Wad'	-
ⓘ	'Mica Group'	-
ⓘ	'Petrified Wood'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Hornblende Root Name Group'	-	◻Ca₂(C²⁺₄C³⁺)(AlSi₇O₂₂)W₂
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄
ⓘ	'Margarodite'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃A
ⓘ	'Amphibole Asbestos'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Pharmacoalumite	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
H	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
H	ⓘ Bariopharmacosiderite	Ba_0.5Fe₄³⁺(AsO₄)₃(OH)₄ · 5H₂O
H	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Clinoclase	Cu₃(AsO₄)(OH)₃
H	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Cornwallite	Cu₅(AsO₄)₂(OH)₄
H	ⓘ Cuprotungstite	Cu₂(WO₄)(OH)₂
H	ⓘ Dawsonite	NaAlCO₃(OH)₂
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
H	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
H	ⓘ Olivenite	Cu₂(AsO₄)(OH)
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
H	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
H	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
H	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
H	ⓘ Segnitite	PbFe₃³⁺AsO₄(AsO₃OH)(OH)₆
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
B	Boron
B	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Dawsonite	NaAlCO₃(OH)₂
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Graphite	C
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Pharmacoalumite	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
O	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
O	ⓘ Amphibole Supergroup	AB₂C₅(T₈O₂₂)W₂
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Bariopharmacosiderite	Ba_0.5Fe₄³⁺(AsO₄)₃(OH)₄ · 5H₂O
O	ⓘ Baryte	BaSO₄
O	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
O	ⓘ Clinoclase	Cu₃(AsO₄)(OH)₃
O	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Cornwallite	Cu₅(AsO₄)₂(OH)₄
O	ⓘ Cuprotungstite	Cu₂(WO₄)(OH)₂
O	ⓘ Dawsonite	NaAlCO₃(OH)₂
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
O	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Magnesiochromite	MgCr₂O₄
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Molybdite	MoO₃
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
O	ⓘ Olivenite	Cu₂(AsO₄)(OH)
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
O	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
O	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Scheelite	Ca(WO₄)
O	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
O	ⓘ Segnitite	PbFe₃³⁺AsO₄(AsO₃OH)(OH)₆
O	ⓘ Siderite	FeCO₃
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
O	ⓘ Uvarovite	Ca₃Cr₂³⁺(SiO₄)₃
O	ⓘ Wollastonite	Ca₃(Si₃O₉)
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Hematite var. Specularite	Fe₂O₃
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Hornblende Root Name Group	◻Ca₂(C₄²⁺C³⁺)(AlSi₇O₂₂)W₂
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
O	ⓘ Apatite	Ca₅(PO₄)₃A
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Na	ⓘ Dawsonite	NaAlCO₃(OH)₂
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Na	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Magnesiochromite	MgCr₂O₄
Mg	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Mg	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
Mg	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Mg	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Mg	ⓘ Fayalite-Forsterite Series
Mg	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Pharmacoalumite	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
Al	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
Al	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Dawsonite	NaAlCO₃(OH)₂
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Al	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Al	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Al	ⓘ Hornblende Root Name Group	◻Ca₂(C₄²⁺C³⁺)(AlSi₇O₂₂)W₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Palygorskite	◻Al₂Mg₂◻₂Si₈O₂₀(OH)₂(H₂O)₄ · 4H₂O
Si	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
Si	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Si	ⓘ Uvarovite	Ca₃Cr₂³⁺(SiO₄)₃
Si	ⓘ Wollastonite	Ca₃(Si₃O₉)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Hornblende Root Name Group	◻Ca₂(C₄²⁺C³⁺)(AlSi₇O₂₂)W₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Clinochlore var. Pennine	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃A
S	Sulfur
S	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Baryte	BaSO₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Covellite	CuS
S	ⓘ Enargite	Cu₃AsS₄
S	ⓘ Galena	PbS
S	ⓘ Jamesonite	Pb₄FeSb₆S₁₄
S	ⓘ Marcasite	FeS₂
S	ⓘ Molybdenite	MoS₂
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Stibnite	Sb₂S₃
S	ⓘ Stromeyerite	AgCuS
S	ⓘ Native Sulphur	S₈
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
K	Potassium
K	ⓘ Pharmacoalumite	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
K	ⓘ Alunite	KAl₃(SO₄)₂(OH)₆
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Orthoclase	K(AlSi₃O₈)
K	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
K	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Beidellite	(Na,Ca_0.5)_0.3Al₂((Si,Al)₄O₁₀)(OH)₂ · nH₂O
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
Ca	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
Ca	ⓘ Scheelite	Ca(WO₄)
Ca	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Ca	ⓘ Uvarovite	Ca₃Cr₂³⁺(SiO₄)₃
Ca	ⓘ Wollastonite	Ca₃(Si₃O₉)
Ca	ⓘ Hornblende Root Name Group	◻Ca₂(C₄²⁺C³⁺)(AlSi₇O₂₂)W₂
Ca	ⓘ Apatite	Ca₅(PO₄)₃A
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Rutile	TiO₂
Cr	Chromium
Cr	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Cr	ⓘ Magnesiochromite	MgCr₂O₄
Cr	ⓘ Uvarovite	Ca₃Cr₂³⁺(SiO₄)₃
Cr	ⓘ Muscovite var. Mariposite	K(Al,Cr)₂(Al,Si)₄O₁₀(OH)₂
Mn	Manganese
Mn	ⓘ Parsettensite	(K,Na,Ca)_7.5(Mn,Mg)₄₉Si₇₂O₁₆₈(OH)₅₀ · nH₂O
Fe	Iron
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Bariopharmacosiderite	Ba_0.5Fe₄³⁺(AsO₄)₃(OH)₄ · 5H₂O
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Axinite-(Fe)	Ca₂Fe²⁺Al₂BSi₄O₁₅OH
Fe	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Jamesonite	Pb₄FeSb₆S₁₄
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
Fe	ⓘ Segnitite	PbFe₃³⁺AsO₄(AsO₃OH)(OH)₆
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Hematite var. Specularite	Fe₂O₃
Fe	ⓘ Fayalite-Forsterite Series
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Clinoclase	Cu₃(AsO₄)(OH)₃
Cu	ⓘ Cornwallite	Cu₅(AsO₄)₂(OH)₄
Cu	ⓘ Covellite	CuS
Cu	ⓘ Cuprotungstite	Cu₂(WO₄)(OH)₂
Cu	ⓘ Native Copper	Cu
Cu	ⓘ Enargite	Cu₃AsS₄
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Olivenite	Cu₂(AsO₄)(OH)
Cu	ⓘ Stromeyerite	AgCuS
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Pharmacoalumite	KAl₄(AsO₄)₃(OH)₄ · 6.5H₂O
As	ⓘ Arsenopyrite	FeAsS
As	ⓘ Bariopharmacosiderite	Ba_0.5Fe₄³⁺(AsO₄)₃(OH)₄ · 5H₂O
As	ⓘ Clinoclase	Cu₃(AsO₄)(OH)₃
As	ⓘ Cornwallite	Cu₅(AsO₄)₂(OH)₄
As	ⓘ Enargite	Cu₃AsS₄
As	ⓘ Olivenite	Cu₂(AsO₄)(OH)
As	ⓘ Scorodite	Fe³⁺AsO₄ · 2H₂O
As	ⓘ Segnitite	PbFe₃³⁺AsO₄(AsO₃OH)(OH)₆
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Mo	Molybdenum
Mo	ⓘ Ferrimolybdite	Fe₂(MoO₄)₃ · nH₂O
Mo	ⓘ Molybdenite	MoS₂
Mo	ⓘ Molybdite	MoO₃
Ag	Silver
Ag	ⓘ Native Silver	Ag
Ag	ⓘ Stromeyerite	AgCuS
Sb	Antimony
Sb	ⓘ Jamesonite	Pb₄FeSb₆S₁₄
Sb	ⓘ Stibnite	Sb₂S₃
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Ba	Barium
Ba	ⓘ Bariopharmacosiderite	Ba_0.5Fe₄³⁺(AsO₄)₃(OH)₄ · 5H₂O
Ba	ⓘ Baryte	BaSO₄
W	Tungsten
W	ⓘ Cuprotungstite	Cu₂(WO₄)(OH)₂
W	ⓘ Scheelite	Ca(WO₄)
Au	Gold
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS
Pb	ⓘ Jamesonite	Pb₄FeSb₆S₁₄
Pb	ⓘ Segnitite	PbFe₃³⁺AsO₄(AsO₃OH)(OH)₆
Bi	Bismuth
Bi	ⓘ Native Bismuth	Bi

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Wikipedia:	https://en.wikipedia.org/wiki/Sierra_County,_California
Wikidata ID:	Q156370
GeoNames ID:	5395582

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References

Preston, E. B. (1893), Amador, Butte, Calaveras, El Dorado, Lassen, Monterey, Plumas, San Benito, Sierra, Tuolumne Counties, also Salton Lake: California Mining Bureau. (Report 11): 11: 139-178, 200-209, 241-242, 259-262, 323-333, 370-373, 387-393, 400-419, 493-513.

Wiltsee, E.A. (1893), Some additional Sierra County mines: California Mining Bureau. Report 11: 413-420.

Turner, Henry Ward (1897), Description of the gold belt: description of the Downieville sheet: USGS Geol. Atlas Downieville folio (Folio No. 37), 8 pp.

Turner, Henry Ward (1898a), Description of the gold belt; description of the Bidwell Bar sheet: USGS Geologic Atlas, Bidwell Bar folio (Folio No. 43), 6 pp.

Lindgren, Waldemar (1900) Colfax folio, California. Folios of the Geologic Atlas 66. US Geological Survey doi:10.3133/gf66

Lindgren, Waldemar (1911), The Tertiary gravels of the Sierra Nevada of California: USGS Professional Paper 73, 226 pp.

Alling, Mark N. (1914) Ancient Auriferous Gravel Channels of Sierra County, California, American Institute of Mining Engineers Bulletin 91: 1709-1728:: A.I.M.E. Transactions: 49: 238-257.

MacBoyle, Errol (1920b), Mines and mineral resources of Sierra County: California Mining Bureau. Report 16, 144 pp. (published as separate chapter).

Logan, Clarence August (1929), Sierra County, Colusa County: California Mining Bureau. (Report 25): 25: 151-211, 284-300.

Averill, Charles V. (1942a), Mineral resources of Sierra County: California Journal of Mines and Geology, California Division Mines (Report 38): 38(1): 7-67.

Durrell, Cordell & P.D. Proctor (1948), Iron ore deposits near Lake Hawley and Spencer Lakes, Sierra County, California: California Division Mines Bulletin 129: 165-192.

Carlson, D.W. & W.B. Clark (1956), Lode gold mines of the Alleghany-Downieville area, Sierra County, California: California Journal of Mines and Geology (Report 52): 52: 237-291.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 282

Clark, W.B. (1970) Gold Districts of California. Bulletin 193. California Division of Mines & Geologypages 19, 25, 31, 33, 44, 51, 66, 105, 108, 1112, 117

D'Allura, J. A. (1977), Stratigraphy, structure, petrology, and regional correlations of metamorphosed upper Paleozoic volcanic rocks in portions of Plumas, Sierra, and Nevada counties, California: University of California, Davis, Ph.D dissertation, 338 p.

White, III, W.W., Scott, D.F., Barnes, D.J., and Neumann, T.R. (1983), Mineral Investigation of the East and West Yuba Rare II areas (Nos. 5264 and 5172), Sierra and Plumas Counties, California: U.S. Bureau of Mines Summary Report No. MLA 71-83.

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