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Tom Moore Lode, Eureka Mining District, San Juan County, Colorado, USA i
Regional Level Types
Tom Moore Lode Lode
Eureka Mining District Mining District
San Juan County County
Colorado State
USA Country

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Latitude & Longitude (WGS84):

37° 54' 10'' North , 107° 33' 10'' West

Latitude & Longitude (decimal):

37.90278,-107.55278

G#: 9wex8efrw

Type:

Köppen climate type:

Dfc : Subarctic climate

Nearest Settlements:

Place	Population	Distance
Silverton	637 (2011)	14.1km
Ouray	1,008 (2017)	16.9km
Telluride	2,399 (2018)	23.1km
Portland	135 (2011)	23.7km
Ophir	169 (2017)	25.1km

Mindat Locality ID:

119093

Long-form identifier:

mindat:1:2:119093:2

GUID (UUID V4):

0

REF:RANSOME, 1901, USGS BULL. 182, P. 174-175
Deposit:: AURAND, 1920, COLO. GEOL. SURVEY BULL. 22 P. 59.
Deposit:: TUNGSTEN MINES OF COLO., 1960, STATE OF COLO METAL MINING FUND BOARD, P. 17.
Deposit:: SHARPS, 1965, C.S.M. MIN. IND. BULL; VOL. 8, NO. 5.
Deposit:: CONSV. DIV. COMP. DATE, 3,64
Deposit:: AURAND, 1920, COLO. GEOL. SURVEY BULL. 22 P. 59.
Deposit:: TUNGSTEN MINES OF COLO., 1960, STATE OF COLO METAL MINING FUND BOARD, P. 17.
Deposit:: SHARPS, 1965, C.S.M. MIN. IND. BULL; VOL. 8, NO. 5.
Deposit:: CONSV. DIV. COMP. DATE, 3,64
Commodities (Major) - Silver, Lead
Deposit Type: Vein
Development Status: Occurrence
Host Rock Unit: Morrison Formation
Host Rock: Rhyolite, Sedimentary Breccia

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Sedimentary breccia

Detailed Mineral List:

ⓘ 'Allanite Group'

Formula: (A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: CaCO₃

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

ⓘ 'Chlorite Group'

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: CaF₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: PbS

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

ⓘ Galena var. Silver-bearing Galena

Formula: PbS with Ag

References:

Emmons, S. F., Becker, G. F. (1885) Statistics and Technology of the Precious Metals. Bureau of the Census.

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: MnWO₄

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

Formula: Al₂(Si₂O₅)(OH)₄

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

ⓘ Native Copper

Formula: Cu

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Native Gold

Formula: Au

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: FeS₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

Formula: SiO₂

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Eckel, Edwin Butt , Cobban, Robert R., Mosburg, Shirley K., Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.

ⓘ Rhodochrosite

Formula: MnCO₃

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Formula: ZnS

References:

Emmons, S. F., Becker, G. F. (1885) Statistics and Technology of the Precious Metals. Bureau of the Census.

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

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

Formula: CaTi(SiO₄)O

References:

Ransome, Frederick Leslie (1901) A report on the economic geology of the Silverton quadrangle, Colorado. Bulletin 182. US Geological Survey doi:10.3133/b182

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Native Gold	1.AA.05	Au
Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	var. Silver-bearing Galena	2.CD.10	PbS with Ag
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Hübnerite	4.DB.30	MnWO₄
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
Group 9 - Silicates
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Allanite Group'	-	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Rhodochrosite	MnCO₃
O	Oxygen
O	ⓘ Calcite	CaCO₃
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Hübnerite	MnWO₄
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
F	Fluorine
F	ⓘ Fluorite	CaF₂
Al	Aluminium
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Allanite Group	(A1²⁺REE³⁺)(M1³⁺M2³⁺M3²⁺)O[Si₂O₇][SiO₄](OH)
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
S	ⓘ Galena var. Silver-bearing Galena	PbS with Ag
K	Potassium
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ti	Titanium
Ti	ⓘ Titanite	CaTi(SiO₄)O
Mn	Manganese
Mn	ⓘ Hübnerite	MnWO₄
Mn	ⓘ Rhodochrosite	MnCO₃
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Native Copper	Cu
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Ag	Silver
Ag	ⓘ Galena var. Silver-bearing Galena	PbS with Ag
Sb	Antimony
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
W	Tungsten
W	ⓘ Hübnerite	MnWO₄
Au	Gold
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS
Pb	ⓘ Galena var. Silver-bearing Galena	PbS with Ag

Other Regions, Features and Areas containing this locality

North AmericaContinent

Rocky MountainsMountain Range

North America PlateTectonic Plate

Great Plains DomainDomain
Southern Rocky MountainsOrogenic Belt

USA

San Juan MountainsMountain Range

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