Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Amador Co., California, USA

Oldest recorded age at locality: 311
Youngest recorded age at locality: 170

mindat Locality ID: 20305
mindat URL: http://www.mindat.org/loc-20305.html

Tectonic Settings:

Total number of sublocalities beneath "Amador Co., California, USA": 660
Total number of bottom-level sublocalities: 594

Number of Child Localities: 26
Child Localities:
Badger Mine
Bisbee Peak
Bonnefoy
Buena Vista
Buena Vista Peaks
Butte City
Camanche-Lancha Plana District (Camanche District)
Dagon
Dew Drop
East Belt
Fiddletown District (Oleta District)
Four Corners
Herbertville
Ione
Irish Hill District
Jackson Butte
Lower Bear River Dam
Mokelumne River
Mother Lode Belt
Newtonville
Pardee District
Rocky Point
Sugarloaf Peak
Volcano District
West Belt
White Oak Flat District

Latitude: 38°23'52"N
Longitude: 120°47'2"W
Decimal Degree (lat, lon): 38.397777777778,-120.78388888889

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amorphous	Amphibole	Arsenopyrite	Calcite	Chalcopyrite	Chlorite	Clay	Copiapite	Copper	Corundum
Diamond	Epsomite	Feldspar	Garnet	Humite	Kaolinite	Löllingite	Malachite	Marcasite	Melanterite
Mica	Molybdenite	Nickeline	None	Not in a structural group	Olivine	Pyrite	Quartz	Rhodonite	Rocksalt
Rutile	Serpentine	Sphalerite	Spinel	Stibnite	Talc	Tetrahedrite	Wollastonite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al As Au C Ca Cr Cu Fe H K Mg Mn Mo Na O P Pb S Sb Si Th Ti Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Amphibole Arsenopyrite Calcite Chalcopyrite Chlorite Clay Copiapite Copper Corundum
Diamond Epsomite Feldspar Garnet Humite Kaolinite Löllingite Malachite Marcasite Melanterite
Mica Molybdenite Nickeline None Not in a structural group Olivine Pyrite Quartz Rhodonite Rocksalt
Rutile Serpentine Sphalerite Spinel Stibnite Talc Tetrahedrite Wollastonite Zircon

53 IMA Minerals at location:

Albite ()*	Alleghanyite ()*	Ankerite ()*	Arsenopyrite ()*	Azurite ()*
Bornite ()*	Calcite ()*	Chalcocite ()*	Chalcopyrite ()*	Chromite ()*
Chrysotile ()*	Clinochlore ()*	Copiapite ()*	Copper ()*	Cuprocopiapite ()*
Diamond ()*	Epsomite ()*	Galena ()*	Gold ()*	Graphite ()*
Hematite ()*	Ilmenite ()*	Kaolinite ()*	Kornelite ()*	Löllingite ()*
Magnesiochromite ()*	Magnetite ()*	Malachite ()*	Marcasite ()*	Melanterite ()*
Mendozite ()*	Molybdenite ()*	Muscovite ()*	Opal ()*	Pyrite ()*
Pyrolusite ()*	Pyrrhotite ()*	Quartz ()*	Rhodochrosite ()*	Rhodonite ()*
Rutile ()*	Spessartine ()*	Sphalerite ()*	Stibnite ()*	Strengite ()*
Talc ()*	Tephroite ()*	Tetrahedrite-(Zn) ()*	Thorite ()*	Tremolite ()*
Uvarovite ()*	Wollastonite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)			3	151084,151178,151179	8803
Alleghanyite ()*	Humite	Mn²⁺₅(SiO₄)₂(OH)₂			2	150854,150860	77
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			5	151107,151178,151179,151187,151188	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS			14	150769,150812,150976,150982,151055,151060,151062,151076,151107,151129,151179,151187,151188,151200	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	170	170	1	150884	5509
Bornite ()*	None	Cu₅FeS₄	170	170	5	150771,150774,150799,150812,150884	5516
Calcite ()*	Calcite	Ca(CO₃)	170	170	7	151039,151107,151187,151188,151234,151266,151285	27770
Chalcocite ()*	None	Cu₂S	170	170	2	150884,151234	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	170	27	150742,150754,150756,150774,150777,150792,150795,150799,150810,150812,150884,150978,151008,151053,151055,151062,151107,151175,151178,151179,151188,151193,151208,151227,151228,151234,151239	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	311	281	11	150667,150672,150673,150885,150967,151047,151216,151221,151236,151245,151258	3902
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄			1	151231	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	151051	1756
Copiapite ()*	Copiapite	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	170	170	1	151234	382
Copper ()*	Copper	Cu	170	170	1	151234	3846
Cuprocopiapite ()*	Copiapite	Cu²⁺Fe³⁺₄(SO₄)₆(OH)₂·20H₂O	170	170	1	151234	12
Diamond ()*	Diamond	C			6	150858,150859,151085,151280,151296,151305	697
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	170	170	1	150884	484
Galena ()*	Rocksalt	PbS	170	170	28	150740,150754,150756,150768,150772,150777,150783,150791,150792,150799,150810,150815,150820,150978,151008,151053,151055,151060,151062,151076,151118,151178,151179,151193,151200,151234,151239,151285	24243
Gold ()*	Copper	Au	311	311	279	150665,150668,150669,150670,150671,150677,150679,150681,150683,150685,150688,150694,150717,150719,150720,150721,150722,150733,150739,150740,150741,150742,150743,150751,150752,150754,150755,150756,150757,150760,150761,150762,150765,150766,150768,150769,150771,150772,150773,150774,150775,150776,150777,150783,150786,150788,150791,150792,150794,150795,150796,150797,150798,150799,150803,150807,150808,150810,150811,150812,150815,150816,150817,150818,150819,150820,150821,150822,150823,150824,150826,150828,150829,150831,150832,150834,150835,150842,150843,150847,150848,150849,150852,150855,150861,150863,150864,150867,150875,150876,150877,150878,150886,150888,150890,150891,150892,150924,150932,150936,150937,150939,150941,150943,150945,150951,150954,150955,150967,150969,150970,150976,150977,150978,150981,150982,150983,150985,150986,150987,150988,150992,150994,150995,150996,150998,150999,151001,151002,151003,151004,151008,151010,151011,151014,151015,151017,151018,151019,151020,151021,151022,151023,151024,151027,151029,151031,151032,151033,151034,151037,151038,151039,151040,151041,151042,151043,151044,151048,151049,151052,151053,151055,151056,151059,151060,151061,151062,151065,151069,151071,151073,151074,151075,151076,151078,151079,151081,151082,151083,151084,151086,151087,151089,151091,151092,151093,151094,151095,151096,151097,151098,151099,151100,151101,151102,151104,151105,151107,151110,151111,151112,151113,151115,151116,151119,151123,151124,151126,151127,151129,151131,151133,151135,151136,151138,151139,151140,151143,151144,151145,151146,151147,151148,151150,151153,151155,151156,151158,151159,151162,151164,151165,151166,151167,151170,151175,151178,151179,151180,151183,151186,151187,151188,151189,151192,151193,151194,151195,151196,151200,151213,151245,151250,151251,151254,151255,151261,151263,151268,151269,151270,151271,151273,151274,151276,151279,151283,151284,151285,151286,151289,151296,151297,151312,151316,151319,151320,151322	30554
Graphite ()*	None	C			1	151055	2812
Hematite ()*	Corundum	Fe₂O₃			2	150967,151292	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			2	150903,150967	5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			9	150726,150903,150904,150905,150913,150925,150929,150934,151292	5591
Kornelite ()*	Not in a structural group	Fe³⁺₂(SO₄)₃·7H₂O (?)	170	170	1	151234	21
Löllingite ()*	Löllingite	FeAs₂			1	150979	762
Magnesiochromite ()*	Spinel	MgCr₂O₄	281	281	6	151210,151211,151216,151219,151220,151230	311
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			2	150967,151224	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	170	170	3	150795,150884,151260	12537
Marcasite ()*	Marcasite	FeS₂			2	150810,151062	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	151310	915
Mendozite ()*	None	NaAl(SO₄)₂·11H₂O			1	151310	28
Molybdenite ()*	Molybdenite	MoS₂			4	150663,150896,151053,151055	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	170	170	7	150770,150982,151179,151187,151227,151234,151239	17380
Opal ()*	Amorphous	SiO₂·nH₂O			4	150874,151223,151260,151305	2994
Pyrite ()*	Pyrite	FeS₂	170	170	40	150742,150754,150756,150769,150772,150774,150777,150783,150791,150792,150795,150799,150810,150812,150815,150820,150831,150884,150967,150976,150978,150982,150992,151015,151017,151053,151055,151060,151062,151076,151107,151178,151179,151187,151188,151200,151227,151234,151239,151276	39462
Pyrolusite ()*	Rutile	MnO₂			6	150763,150770,150860,151224,151290,151309	3106
Pyrrhotite ()*	Nickeline	Fe₇S₈			7	150791,150810,150820,151002,151055,151084,151193	9056
Quartz ()*	Quartz	SiO₂	281	170	96	150665,150740,150742,150755,150756,150757,150769,150770,150771,150772,150775,150777,150783,150791,150792,150794,150795,150796,150798,150799,150803,150807,150810,150812,150820,150821,150824,150826,150832,150835,150862,150865,150868,150967,150969,150970,150976,150977,150978,150982,150987,150992,151002,151004,151014,151017,151022,151029,151032,151037,151039,151043,151052,151053,151055,151060,151062,151076,151082,151086,151087,151101,151107,151111,151112,151115,151123,151129,151139,151140,151143,151153,151155,151164,151166,151167,151170,151175,151178,151179,151186,151187,151188,151200,151210,151223,151227,151234,151239,151260,151261,151269,151276,151285,151305,151316	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)			2	150854,150860	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			8	150763,150770,150781,150813,151222,151224,151290,151300	969
Rutile ()*	Rutile	TiO₂			2	150868,150967	5614
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			1	150854	1214
Sphalerite ()*	Sphalerite	ZnS	170	170	16	150771,150777,150791,150810,150812,150884,151062,151076,151178,151179,151187,151193,151200,151227,151234,151239	21482
Stibnite ()*	Stibnite	Sb₂S₃			2	150952,150978	3418
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O			1	151060	263
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			3	151205,151232,151251	3337
Tephroite ()*	Olivine	Mn²⁺₂(SiO₄)			2	150854,150860	240
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			1	151055	5317
Thorite ()*	Zircon	Th(SiO₄)			1	150967	1006
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	150749	2562
Uvarovite ()*	Garnet	Ca₃Cr₂(SiO₄)₃			2	151036,151211	212
Wollastonite ()*	Wollastonite	CaSiO₃			1	150968	1247
Zircon ()*	Zircon	Zr(SiO₄)			2	150903,150967	5251

7 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
vms-01027	170	170	Jurassic	S	73552	Copper Hill Mine (Cosumnes Mine; Hobo Mine; Jackass Shaft), Four Corners, Amador Co., California, USA	Copper Hill	Moiser et al. (2009)	USGSOFR2009_1034
podchrome-00081	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)	Cr	73570	Detert Property (Detert Group), Four Corners, Amador Co., California, USA	Detert Property	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00077	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)	Cr	73605	Ellis Property (Boss Mine), Chrome Mountain, Pardee District, Amador Co., California, USA	Ellis Property	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00078	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)	Cr	73556	Courtwright Property (Woods And Roach Lease), Sunnybrook, Pardee District, Amador Co., California, USA	Courtwright Property	Moiser et al. (2012)	USGSSIR2012_5157
vms-01036	170	170	Jurassic	S	16948	Newton Mine (Newton Copper Mine; Jackson Mine), Sunnybrook, Pardee District, Amador Co., California, USA	Newton	Moiser et al. (2009)	USGSOFR2009_1034
podchrome-00079	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)	Cr	73576	Dooley Property, Rocky Point, Amador Co., California, USA	Dooley	Moiser et al. (2012)	USGSSIR2012_5157
podchrome-00080	311	311	Pennsylvanian (311±3 m.y. 206Pb/238U)	Cr	73992	Wait Property, Sugarloaf Peak, Amador Co., California, USA	Wait Property	Moiser et al. (2012)	USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...