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Amador County, California, USAi
Regional Level Types
Amador CountyCounty
CaliforniaState
USACountry

Flag of Amador County
This page kindly sponsored by Troy Schmidt
PhotosMapsSearchMineralogy
01428010017272046766681.jpg
Map of Mines of Amador County, California, 1903

Amador County, California, USA
07552530017272046771717.jpg
1903 Map: Western Amador Co., California

Amador County, California, USA
01428010017272046766681.jpg
Map of Mines of Amador County, California, 1903

Amador County, California, USA
07552530017272046771717.jpg
1903 Map: Western Amador Co., California

Amador County, California, USA
01428010017272046766681.jpg
Map of Mines of Amador County, California, 1903

Amador County, California, USA
07552530017272046771717.jpg
1903 Map: Western Amador Co., California

Amador County, California, USA
Type:
Largest Settlements:
PlacePopulation
Ione7,000 (2017)
Jackson4,649 (2017)
Sutter Creek2,488 (2017)
Buckhorn2,429 (2017)
Pine Grove2,219 (2011)
Red Corral1,413 (2017)
Mindat Locality ID:
20305
Long-form identifier:
mindat:1:2:20305:3
GUID (UUID V4):
0
Other Languages:
French:
Comté d'Amador, Californie, États-Unis
German:
Amador County, Kalifornien, Vereinigte Staaten
Italian:
Contea di Amador, California, Stati Uniti d'America
Russian:
Амадор, Калифорния, Соединённые Штаты Америки
Simplified Chinese:
阿马多尔县, 加利福尼亚州, 美国
Spanish:
Condado de Amador, California, Estados Unidos
Albanian:
Amador County, Kalifornia, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة أمادور, كاليفورنيا, الولايات المتحدة
Armenian:
Ամադոր շրջան, Կալիֆոռնիա, Ամերիկայի Միացյալ Նահանգներ
Basque:
Amador konderria, Kalifornia
Bavarian:
Amador County, Kalifornien, Vaoanigte Stootn
Bishnupriya Manipuri:
আমাডোর কাউন্টি, ক্যালিফোর্নিয়া, তিলপারাষ্ট্র
Bulgarian:
Амадор, Калифорния, Съединени американски щати
Cebuano:
Amador County, California
Czech:
Amador County, Kalifornie, Spojené státy americké
Danish:
Amador County, Californien, USA
Dutch:
Amador County, Verenigde Staten
Estonian:
Amadori maakond, California, Ameerika Ühendriigid
Farsi/Persian:
شهرستان آمادور، کالیفرنیا, کالیفرنیا, ایالات متحده آمریکا
Finnish:
Amadorin piirikunta, Kalifornia, Yhdysvallat
Galician:
Condado de Amador, California, Estados Unidos de América
Hungarian:
Amador megye, Kalifornia, Amerikai Egyesült Államok
Irish Gaelic:
Contae Amador, California, Stáit Aontaithe Mheiriceá
Japanese:
アマドール郡, カリフォルニア州, アメリカ合衆国
Kapampangan:
Amador County, California, Estados Unidos
Latin:
Amador Comitatus, California, Civitates Foederatae Americae
Limburgian:
Amador County, Californië, Vereinegde Staote vaan Amerika
Lithuanian:
Amadoro apygarda, Kalifornija, Jungtinės Amerikos Valstijos
Low Saxon/Low German:
Amador County, Kalifornien, USA
Malayalam:
അമഡോർ കൗണ്ടി, കാലിഫോർണിയ
Norwegian:
Amador County, California, USA
Polish:
Hrabstwo Amador, Kalifornia, Stany Zjednoczone
Portuguese:
Condado de Amador, Califórnia, Estados Unidos
Scots:
Amador Coonty, Californie
Serbian:
Округ Амадор, Калифорнија, Сједињене Америчке Државе
Serbo-Croatian:
Amador County, Kalifornija, Sjedinjene Američke Države
Swedish:
Amador County, Kalifornien, USA
Tagalog:
Amador County, California, Estados Unidos
Traditional Chinese:
阿馬多爾縣, 加利福尼亞州, 美國
Turkish:
Amador County, Kaliforniya, Amerika Birleşik Devletleri
Ukrainian:
Амадор, Каліфорнія, Сполучені Штати Америки
Urdu:
ایماڈور کاؤنٹی، کیلیفورنیا, کیلیفورنیا, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Amador, California, Chủng Quốc Hoa Kỳ
Waray:
Condado han Amador, California, Estados Unidos
Western Punjabi:
اماڈور کاؤنٹی, کیلیفورنیا, امریکہ


Geological Overview Of Amador County
Amador County lies almost entirely in the Sierra Nevada geomorphic province; only the extreme western portion lies in the Great Valley. From the Great Valley eastward, the range gradually rises to the glaciated crest in the vicinity of Mokelumne and Thimble Peaks, both of which lie above 9000 feet.

The older rocks of the Sierra Nevada, commonly called the Bedrock series, consist of isoclinally folded, complexly faulted metamorphic rocks of Paleozoic and Mesozoic ages, intruded by several types of igneous rocks, chiefly granitic. Unconformably overlying these rocks in the western portion of Amador County are much younger, nearly flat-lying Tertiary sediments. These nearly flat-lying sediments are commonly called the Superjacent series.

In Amador County, the older metamorphic rocks are divided into the Calaveras and Amador (Taliaferro, 1943, pp. 282-284) groups and the Mariposa formation. The Calaveras group includes all of the pre-Mesozoic rocks in this county while the Amador group and Mariposa formation are Jurassic. Taliaferro has divided the Amador group of Amador County into two distinctive formations: the Cosumnes and Logtown Ridge formations.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

61 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
ⓘ Alleghanyite
Formula: Mn2+5(SiO4)2(OH)2
ⓘ 'Amphibole Supergroup'
Formula: AB2C5(T8O22)W2
ⓘ 'Anauxite'
ⓘ 'Andradite-Grossular Series'
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 6 localities in this region.
ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Anorthite var. Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
Description: Principal gangue mineral in some deep level ore.
ⓘ Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 15 localities in this region.
ⓘ 'Asbestos'
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Axinite Group'
Description: Occurs as crystals to 1 inch (2.5 cm) long in veins cutting limestone.
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 8 localities in this region.
ⓘ Chalcocite
Formula: Cu2S
Description: Occurs in appreciable amounts in the deepest levels of the mine.
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 28 localities in this region.
ⓘ 'Chlorite Group'
Description: Occurs as an alteration product.
ⓘ Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 15 localities in this region.
ⓘ 'Chrysoprase'
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
Description: Occurs as veins in a dark green serpentine.
ⓘ 'Clay minerals'
Localities: Reported from at least 44 localities in this region.
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Chromium-bearing Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
ⓘ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘ Copiapite
Formula: Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
ⓘ Cuprocopiapite
Formula: Cu2+Fe3+4(SO4)6(OH)2 · 20H2O
ⓘ Diamond
Formula: C
Localities: Reported from at least 6 localities in this region.
Description: 5 stones found 1855-1867.
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Epsomite
Formula: MgSO4 · 7H2O
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Galena
Formula: PbS
Localities: Reported from at least 28 localities in this region.
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Graphite
Formula: C
Description: Rather abundant.
ⓘ Grossular var. Hibschite
Formula: Ca3Al2(SiO4)3-x(OH)4x
ⓘ Halloysite
Formula: Al2Si2O5(OH)4 · n(H2O)
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ Ilmenite
Formula: Fe2+TiO3
Description: Placer material in heavy minerals component of a clay/sand deposit.
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
Localities: Reported from at least 10 localities in this region.
ⓘ Kornelite
Formula: Fe2(SO4)3 · 7H2O
ⓘ 'Limonite'
ⓘ Löllingite
Formula: FeAs2
Description: Occurs as small crystals in veins in slate.
ⓘ Magnesiochromite
Formula: MgCr2O4
Localities: Reported from at least 6 localities in this region.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ 'Manganese Oxides'
ⓘ Marcasite
Formula: FeS2
ⓘ Melanterite
Formula: Fe2+(H2O)6(SO4) · H2O
Description: Occurs on walls of an old tunnel.
ⓘ Mendozite
Formula: NaAl(SO4)2 · 11H2O
Description: Occurs on walls of an old tunnel.
ⓘ Molybdenite
Formula: MoS2
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 9 localities in this region.
Description: Occurs as an alteration product.
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 7 localities in this region.
ⓘ Native Copper
Formula: Cu
Description: Occurs as arborescent masses.
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 280 localities in this region.
ⓘ 'Ochre'
ⓘ 'Olivine Group'
Formula: M2SiO4
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Opal var. Moss Opal
ⓘ 'Orthopyroxene Subgroup'
ⓘ 'Petrified Wood'
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ 'Psilomelane'
Localities: Reported from at least 11 localities in this region.
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 40 localities in this region.
ⓘ Pyrite var. Gold-bearing Pyrite
Formula: FeS2
ⓘ Pyrolusite
Formula: Mn4+O2
Localities: Reported from at least 6 localities in this region.
ⓘ Pyrophyllite ?
Formula: Al2Si4O10(OH)2
Description: A gangue mineral. May be damourite.
ⓘ Pyrrhotite
Formula: Fe1-xS
Localities: Reported from at least 7 localities in this region.
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 103 localities in this region.
ⓘ Quartz var. Amethyst
Formula: SiO2
ⓘ Quartz var. Blue Chalcedony
Formula: SiO2
ⓘ Quartz var. Blue Quartz
Formula: SiO2
References:
Ech Noch CollectionIdentified by Ech Noch: Visual Identification, Inferred (explain how)
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Quartz var. Milky Quartz
Formula: SiO2
ⓘ Quartz var. Rock Crystal
Formula: SiO2
Description: Contains carbonaceous inclusions.
ⓘ Quartz var. Rose Quartz
Formula: SiO2
ⓘ Quartz var. Rutilated Quartz
Formula: SiO2
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
ⓘ Rhodochrosite
Formula: MnCO3
ⓘ Rhodonite
Formula: CaMn3Mn[Si5O15]
Localities: Reported from at least 8 localities in this region.
ⓘ Rutile
Formula: TiO2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
References:
Ech Noch CollectionIdentified by Ech Noch: Visual Identification
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
ⓘ 'Silica'
Localities: Reported from at least 6 localities in this region.
Description: Occurs as silica sand.
ⓘ 'Soapstone'
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ Sphalerite
Formula: ZnS
Localities: Reported from at least 17 localities in this region.
ⓘ Stibnite
Formula: Sb2S3
ⓘ Strengite
Formula: FePO4 · 2H2O
Description: Occurs in the deep levels of the mine.
ⓘ Talc
Formula: Mg3Si4O10(OH)2
Description: Occurs as talcose schist.
ⓘ Tephroite
Formula: Mn2+2(SiO4)
Description: Occurs in nodules.
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Thorite
Formula: Th(SiO4)
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Description: Occurs as fibrous sheets (mountain leather; mountain cork).
ⓘ Uvarovite
Formula: Ca3Cr3+2(SiO4)3
Description: Occurs in considerable quantities.
ⓘ Wollastonite
Formula: Ca3(Si3O9)
ⓘ Zircon
Formula: Zr(SiO4)
Description: Placer material in heavy minerals component of a clay/sand deposit.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
ⓘGraphite1.CB.05aC
ⓘDiamond1.CB.10aC
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘStibnite2.DB.05Sb2S3
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite
var. Gold-bearing Pyrite
2.EB.05aFeS2
ⓘ2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘLöllingite2.EB.15aFeAs2
ⓘArsenopyrite2.EB.20FeAsS
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnesiochromite4.BB.05MgCr2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz
var. Amethyst
4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘvar. Rose Quartz4.DA.05SiO2
ⓘvar. Rutilated Quartz4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘvar. Rock Crystal4.DA.05SiO2
ⓘvar. Milky Quartz4.DA.05SiO2
ⓘvar. Blue Quartz4.DA.05SiO2
ⓘvar. Blue Chalcedony4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘvar. Moss Opal4.DA.10SiO2 · nH2O
ⓘPyrolusite4.DB.05Mn4+O2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘRhodochrosite5.AB.05MnCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘMelanterite7.CB.35Fe2+(H2O)6(SO4) · H2O
ⓘEpsomite7.CB.40MgSO4 · 7H2O
ⓘKornelite7.CB.60Fe2(SO4)3 · 7H2O
ⓘMendozite7.CC.15NaAl(SO4)2 · 11H2O
ⓘCopiapite7.DB.35Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
ⓘCuprocopiapite7.DB.35Cu2+Fe3+4(SO4)6(OH)2 · 20H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
ⓘStrengite8.CD.10FePO4 · 2H2O
Group 9 - Silicates
ⓘChrysotile9.00.Mg3(Si2O5)(OH)4
ⓘTephroite9.AC.05Mn2+2(SiO4)
ⓘGrossular
var. Hibschite
9.AD.25Ca3Al2(SiO4)3-x(OH)4x
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘUvarovite9.AD.25Ca3Cr3+2(SiO4)3
ⓘThorite9.AD.30Th(SiO4)
ⓘZircon9.AD.30Zr(SiO4)
ⓘAlleghanyite9.AF.45Mn2+5(SiO4)2(OH)2
ⓘClinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘPyrophyllite ?9.EC.10Al2Si4O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘvar. Chromium-bearing Clinochlore9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘHalloysite9.ED.10Al2Si2O5(OH)4 · n(H2O)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
ⓘvar. Labradorite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
ⓘAlbite
var. Oligoclase
9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Unclassified
ⓘ'Amphibole Supergroup'-AB2C5(T8O22)W2
ⓘ'Anauxite'-
ⓘ'Asbestos'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chrysoprase'-
ⓘ'Chlorite Group'-
ⓘ'Clay minerals'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Psilomelane'-
ⓘ'Petrified Wood'-
ⓘ'Andradite-Grossular Series'-
ⓘ'Hornblende Root Name Group'-◻Ca2(C2+4C3+)(AlSi7O22)W2
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Soapstone'-
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Silica'-
ⓘ'Orthopyroxene Subgroup'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Manganese Oxides'-
ⓘ'Ochre'-
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'Axinite Group'-
ⓘ'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
Hⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Hⓘ CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ EpsomiteMgSO4 · 7H2O
Hⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Hⓘ Grossular var. HibschiteCa3Al2(SiO4)3-x(OH)4x
Hⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ KorneliteFe2(SO4)3 · 7H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Hⓘ MendoziteNaAl(SO4)2 · 11H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ OpalSiO2 · nH2O
Hⓘ PyrophylliteAl2Si4O10(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ StrengiteFePO4 · 2H2O
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
BBoron
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DiamondC
Cⓘ GraphiteC
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ RhodochrositeMnCO3
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Oⓘ Quartz var. AmethystSiO2
Oⓘ Amphibole SupergroupAB2C5(T8O22)W2
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Oⓘ CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
Oⓘ EnstatiteMg2Si2O6
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ EpsomiteMgSO4 · 7H2O
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Oⓘ HematiteFe2O3
Oⓘ Grossular var. HibschiteCa3Al2(SiO4)3-x(OH)4x
Oⓘ IlmeniteFe2+TiO3
Oⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ KorneliteFe2(SO4)3 · 7H2O
Oⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Oⓘ MagnesiochromiteMgCr2O4
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Oⓘ MendoziteNaAl(SO4)2 · 11H2O
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oⓘ OpalSiO2 · nH2O
Oⓘ PyrolusiteMn4+O2
Oⓘ PyrophylliteAl2Si4O10(OH)2
Oⓘ QuartzSiO2
Oⓘ RhodochrositeMnCO3
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ Quartz var. Rose QuartzSiO2
Oⓘ Quartz var. Rutilated QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ StrengiteFePO4 · 2H2O
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ TephroiteMn22+(SiO4)
Oⓘ ThoriteTh(SiO4)
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ UvaroviteCa3Cr23+(SiO4)3
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ ZirconZr(SiO4)
Oⓘ Quartz var. Rock CrystalSiO2
Oⓘ Quartz var. Milky QuartzSiO2
Oⓘ Andradite-Grossular Series
Oⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ Quartz var. Blue QuartzSiO2
Oⓘ ApatiteCa5(PO4)3A
Oⓘ Olivine GroupM2SiO4
Oⓘ Quartz var. Blue ChalcedonySiO2
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Naⓘ MendoziteNaAl(SO4)2 · 11H2O
Naⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ EpsomiteMgSO4 · 7H2O
Mgⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgⓘ MagnesiochromiteMgCr2O4
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Alⓘ Grossular var. HibschiteCa3Al2(SiO4)3-x(OH)4x
Alⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Alⓘ MendoziteNaAl(SO4)2 · 11H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alⓘ PyrophylliteAl2Si4O10(OH)2
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ Andradite-Grossular Series
Alⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Siⓘ Quartz var. AmethystSiO2
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ EnstatiteMg2Si2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ HalloysiteAl2Si2O5(OH)4 · n(H2O)
Siⓘ Grossular var. HibschiteCa3Al2(SiO4)3-x(OH)4x
Siⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siⓘ OpalSiO2 · nH2O
Siⓘ PyrophylliteAl2Si4O10(OH)2
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
Siⓘ Quartz var. Rose QuartzSiO2
Siⓘ Quartz var. Rutilated QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ TephroiteMn22+(SiO4)
Siⓘ ThoriteTh(SiO4)
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ UvaroviteCa3Cr23+(SiO4)3
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ ZirconZr(SiO4)
Siⓘ Quartz var. Rock CrystalSiO2
Siⓘ Quartz var. Milky QuartzSiO2
Siⓘ Andradite-Grossular Series
Siⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ Quartz var. Blue QuartzSiO2
Siⓘ Olivine GroupM2SiO4
Siⓘ Quartz var. Blue ChalcedonySiO2
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ Monazite GroupREE(PO4)
Pⓘ StrengiteFePO4 · 2H2O
Pⓘ ApatiteCa5(PO4)3A
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ Pyrite var. Gold-bearing PyriteFeS2
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Sⓘ CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
Sⓘ EpsomiteMgSO4 · 7H2O
Sⓘ GalenaPbS
Sⓘ KorneliteFe2(SO4)3 · 7H2O
Sⓘ MarcasiteFeS2
Sⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Sⓘ MendoziteNaAl(SO4)2 · 11H2O
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ StibniteSb2S3
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ CalciteCaCO3
Caⓘ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ Grossular var. HibschiteCa3Al2(SiO4)3-x(OH)4x
Caⓘ Anorthite var. Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Caⓘ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caⓘ RhodoniteCaMn3Mn[Si5O15]
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ UvaroviteCa3Cr23+(SiO4)3
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ Andradite-Grossular Series
Caⓘ Hornblende Root Name Group◻Ca2(C42+C3+)(AlSi7O22)W2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3A
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Crⓘ MagnesiochromiteMgCr2O4
Crⓘ UvaroviteCa3Cr23+(SiO4)3
MnManganese
Mnⓘ AlleghanyiteMn52+(SiO4)2(OH)2
Mnⓘ PyrolusiteMn4+O2
Mnⓘ RhodochrositeMnCO3
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
Mnⓘ SpessartineMn32+Al2(SiO4)3
Mnⓘ TephroiteMn22+(SiO4)
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ ArsenopyriteFeAsS
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ Pyrite var. Gold-bearing PyriteFeS2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
Feⓘ CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ KorneliteFe2(SO4)3 · 7H2O
Feⓘ LöllingiteFeAs2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ MelanteriteFe2+(H2O)6(SO4) · H2O
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feⓘ StrengiteFePO4 · 2H2O
Feⓘ Andradite-Grossular Series
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ LöllingiteFeAs2
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2
SbAntimony
Sbⓘ StibniteSb2S3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS
ThThorium
Thⓘ ThoriteTh(SiO4)

Fossils

There are 11 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences11
Youngest Fossil Listed151 Ma (Late Jurassic)
Oldest Fossil Listed166 Ma (Middle Jurassic)
Stratigraphic Units
UnitNo. OccurrencesAge
Mariposa7161.2 - 150.8 Ma (Jurassic)
Logtown Ridge4166.1 - 150.8 Ma (Jurassic)
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Phylloceras
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Phylloceratidae : Phylloceras161.2 - 150.8 Ma
Jurassic
Peltoceras
genus
Animalia : Mollusca : Cephalopoda : Ammonoidea : Aspidoceratidae : Peltoceras166.1 - 150.8 Ma
Jurassic
Belemnites
genus
Animalia : Mollusca : Cephalopoda : Belemnitida : Belemnites161.2 - 150.8 Ma
Jurassic
Entolium
genus
Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : Entolium161.2 - 150.8 Ma
Jurassic
Cadoceras (Pseudocadoceras) grewingki
species
Animalia : Mollusca : Cephalopoda : Ammonitida : Cardioceratidae : Cadoceras : Cadoceras (Pseudocadoceras) grewingki166.1 - 150.8 Ma
Jurassic
Pseudocadoceras crassicostatum
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Cardioceratidae : Pseudocadoceras : Pseudocadoceras crassicostatum166.1 - 150.8 Ma
Jurassic
Buchia concentrica
species
Animalia : Mollusca : Bivalvia : Pectinida : Buchiidae : Buchia : Buchia concentrica161.2 - 150.8 Ma
Jurassic
Fossil LocalitiesClick to show 4 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Amador_County,_California
Wikidata ID:Q156177
GeoNames ID:5323622

Localities in this Region

Other Regions, Features and Areas that Intersect

North America Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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