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:
Foothill Copper Belt, Calaveras Co., California, USA

Oldest recorded age at locality: 281
Youngest recorded age at locality: 100

mindat Locality ID: 212375
mindat URL: http://www.mindat.org/loc-212375.html

Tectonic Settings:

Total number of sublocalities beneath "Foothill Copper Belt, Calaveras Co., California, USA": 121
Total number of bottom-level sublocalities: 111

Number of Child Localities: 7
Child Localities:
Campo Seco District
Carmen City
Copperopolis
Elkhorn Station
Lightner Peak
Sugarloaf Mountain
Telegraph City

Latitude: 38°0'48"N
Longitude: 120°39'59"W
Decimal Degree (lat, lon): 38.013333333333,-120.66638888889

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.

Allophane	Alunite	Amphibole	Andalusite	Baryte	Brochantite	Calcite	Chalcanthite	Chalcopyrite	Chlorite
Clay	Clinozoisite	Cobaltite	Copper	Coquimbite	Corundum	Covellite	Epidote	Feldspar	Gypsum
Hydrotalcite	Kaolinite	Malachite	Melanterite	Mica	None	Not in a structural group	Olivine	Phenakite	Pyrite
Quartz	Rhodonite	Rocksalt	Rutile	Serpentine	Sphalerite	Spinel	Talc	Tetrahedrite	Titanite
Vivianite

Albite ()*	Andalusite ()*	Azurite ()*	Baryte ()*	Bementite ()*
Boothite ()*	Bornite ()*	Brochantite ()*	Calcite ()*	Chalcanthite ()*
Chalcocite ()*	Chalcopyrite ()*	Chromite ()*	Chrysocolla ()*	Chrysotile ()*
Clinochlore ()*	Cobaltite ()*	Copper ()*	Coquimbite ()*	Covellite ()*
Cuprite ()*	Epidote ()*	Fayalite ()*	Galena ()*	Gold ()*
Graphite ()*	Gypsum ()*	Hematite ()*	Ilmenite ()*	Jarosite ()*
Kalinite ()*	Kaolinite ()*	Magnesiochromite ()*	Malachite ()*	Muscovite ()*
Pyrite ()*	Quartz ()*	Reevesite ()*	Rhodochrosite ()*	Rhodonite ()*
Rutile ()*	Siderite ()*	Silver ()*	Sphalerite ()*	Talc ()*
Tenorite ()*	Tephroite ()*	Tetrahedrite-(Zn) ()*	Titanite ()*	Tremolite ()*
Vivianite ()*	Willemite ()*

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: Ag Al As Au Ba C Ca Co Cr Cu Fe H K Mg Mn Na Ni O P Pb S Sb Si Ti Zn

Elements from minerals reported directly at this locality: As Co S

Structural Groups for minerals in this locality:
Allophane Alunite Amphibole Andalusite Baryte Brochantite Calcite Chalcanthite Chalcopyrite Chlorite
Clay Clinozoisite Cobaltite Copper Coquimbite Corundum Covellite Epidote Feldspar Gypsum
Hydrotalcite Kaolinite Malachite Melanterite Mica None Not in a structural group Olivine Phenakite Pyrite
Quartz Rhodonite Rocksalt Rutile Serpentine Sphalerite Spinel Talc Tetrahedrite Titanite
Vivianite

52 IMA Minerals at location:

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)	170	170	1	152738	8803
Andalusite ()*	Andalusite	Al₂SiO₅	170	170	1	152798	1310
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	170	170	2	152761,152795	5509
Baryte ()*	Baryte	Ba(SO₄)	170	100	5	152761,152792,152842,152844,152849	11547
Bementite ()*	Clay	Mn₇Si₆O₁₅(OH)₈	100	100	2	152779,152820	173
Boothite ()*	Melanterite	Cu(SO₄)·7H₂O	170	170	2	152738,152761	18
Bornite ()*	None	Cu₅FeS₄	170	170	3	152761,152795,152798	5516
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	170	170	1	152795	1633
Calcite ()*	Calcite	Ca(CO₃)	170	100	6	152753,152761,152792,152798,152842,152844	27770
Chalcanthite ()*	Chalcanthite	Cu(SO₄)·5H₂O	170	100	2	152802,152844	925
Chalcocite ()*	None	Cu₂S	170	100	3	152761,152844,152849	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	100	18	152740,152751,152753,152761,152783,152795,152796,152797,152798,152802,152808,152812,152832,152842,152844,152847,152849,152851	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	170	100	8	152738,152772,152776,152781,152786,152787,152809,152815	3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	170	100	2	152761,152849	3531
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	100	100	3	152814,152830,152834	951
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	281	100	3	152776,152777,152778	1756
Cobaltite ()*	Cobaltite	CoAsS	170	170	0		966
Copper ()*	Copper	Cu	170	100	6	152743,152761,152795,152798,152808,152842	3846
Coquimbite ()*	Coquimbite	AlFe₃(SO₄)₆(H₂O)₁₂·6H₂O	170	170	1	152844	136
Covellite ()*	Covellite	CuS	170	100	3	152761,152783,152805	4165
Cuprite ()*	Not in a structural group	Cu₂O	170	100	4	152795,152796,152798,152802	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	170	170	1	152798	8173
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)	100	100	1	152762	371
Galena ()*	Rocksalt	PbS	170	100	4	152751,152761,152792,152842	24243
Gold ()*	Copper	Au	170	100	39	152738,152739,152741,152742,152743,152744,152747,152748,152749,152750,152753,152755,152760,152761,152766,152767,152768,152769,152773,152775,152780,152782,152783,152790,152792,152801,152808,152817,152823,152824,152826,152828,152829,152840,152843,152846,152850,152852,152853	30554
Graphite ()*	None	C	100	100	3	152738,152741,152750	2812
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	170	170	1	152761	6890
Hematite ()*	Corundum	Fe₂O₃	170	170	1	152798	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	170	170	1	152798	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	170	170	1	152761	2228
Kalinite ()*	None	KAl(SO₄)₂·11H₂O	170	170	1	152844	54
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	170	100	4	152761,152844,152847,152849	5591
Magnesiochromite ()*	Spinel	MgCr₂O₄	281	100	7	152777,152778,152788,152791,152794,152799,152807	311
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	170	100	6	152761,152795,152798,152802,152808,152849	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	170	100	3	152761,152792,152844	17380
Pyrite ()*	Pyrite	FeS₂	170	100	18	152740,152743,152751,152761,152783,152792,152797,152798,152812,152817,152832,152840,152842,152843,152844,152847,152849,152851	39462
Quartz ()*	Quartz	SiO₂	170	100	37	152741,152742,152744,152747,152748,152750,152751,152753,152755,152760,152761,152767,152773,152775,152780,152782,152783,152790,152792,152797,152798,152801,152802,152817,152823,152824,152826,152839,152840,152842,152843,152844,152846,152849,152850,152852,152853	61156
Reevesite ()*	Hydrotalcite	Ni₆Fe³⁺₂(CO₃)(OH)₁₆·4H₂O	100	100	1	152806	48
Rhodochrosite ()*	Calcite	Mn(CO₃)	100	100	1	152779	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)	100	100	2	152820,152836	969
Rutile ()*	Rutile	TiO₂	170	170	1	152798	5614
Siderite ()*	Calcite	Fe(CO₃)	170	170	1	152738	6417
Silver ()*	Copper	Ag	170	100	3	152743,152757,152844	5186
Sphalerite ()*	Sphalerite	ZnS	170	100	7	152751,152761,152783,152792,152842,152844,152849	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	281	100	3	152807,152850,152855	3337
Tenorite ()*	None	CuO	170	170	2	152738,152795	1101
Tephroite ()*	Olivine	Mn²⁺₂(SiO₄)	100	100	1	152779	240
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	170	170	1	152761	5317
Titanite ()*	Titanite	CaTi(SiO₄)O	170	170	1	152798	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	100	100	1	152772	2562
Vivianite ()*	Vivianite	Fe²⁺₃(PO₄)₂·8H₂O	281	170	1	152789	636
Willemite ()*	Phenakite	Zn₂SiO₄	100	100	1	152762	303

9 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Age from other Locality	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Mo-00156	100	100		Yes	Molybdenite	Mo	16293	Calaveras Co., California, USA	Calaveras County	Brock (1972)	10.1130/0016-7606(1972)83[3391:GOGHSC]2.0.CO;2	GSAB83_3391
vms-01039	170	170	Jurassic			S	9552	Penn Mine (Happy Jack; West Constellation; Satellite; Big Satellite; Hinkcley; Blue Jay; Meteor; Hecla; Little Satellite; Copper Hill; Penn Chemical Works; Campo Seco), Campo Seco, Campo Seco District, Foothill Copper Belt, Calaveras Co., California, USA	Penn	Moiser et al. (2009)		USGSOFR2009_1034
podchrome-00067	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)			Cr	75050	Clary And Langford Mine (Langford Deposit; Porter And Spring; Porter And Springs; Nassau), Carmen City, Foothill Copper Belt, Calaveras Co., California, USA	Clary and Langford	Moiser et al. (2012)		USGSSIR2012_5157
podchrome-00066	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)			Cr	76180	Walker Mine (Chaparral; Brushy Hill), Carmen City, Foothill Copper Belt, Calaveras Co., California, USA	Walker 1	Moiser et al. (2012)		USGSSIR2012_5157
podchrome-00075	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)			Cr	76180	Walker Mine (Chaparral; Brushy Hill), Carmen City, Foothill Copper Belt, Calaveras Co., California, USA	Walker 2	Moiser et al. (2012)		USGSSIR2012_5157
vms-01034	170	170	Jurassic			S	75449	Keystone-Union Mine (Calaveras Copper), Copperopolis Mines (Copperopolis Group), Copperopolis, Foothill Copper Belt, Calaveras Co., California, USA	Keystone-Union	Moiser et al. (2009)		USGSOFR2009_1034
vms-01037	170	170	Jurassic			S	13833	North Keystone Mine (Keystone Mine), Copperopolis Mines (Copperopolis Group), Copperopolis, Foothill Copper Belt, Calaveras Co., California, USA	North Keystone	Moiser et al. (2009)		USGSOFR2009_1034
podchrome-00065	281	281	Permian (280±3 m.y. 206Pb/238U, 282±3 m.y. 207Pb/235U)			Cr	75959	Stone Mine (Trask Mine; Longton Mine; Coffer Mine; Trask And Stone Lease), Copperopolis, Foothill Copper Belt, Calaveras Co., California, USA	Stone	Moiser et al. (2012)		USGSSIR2012_5157
vms-01040	170	170	Jurassic			S	75795	Quail Hill Mine (Eagle Mine; Eagle Copper And Silver Mine), Telegraph City, Foothill Copper Belt, Calaveras Co., California, USA	Quail Hill	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...