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:
Campo Seco, Campo Seco District, Foothill Copper Belt, Calaveras Co., California, USA

Oldest recorded age at locality: 170
Youngest recorded age at locality: 100

mindat Locality ID: 145715
mindat URL: http://www.mindat.org/loc-145715.html

Tectonic Settings:

Total number of sublocalities beneath "Campo Seco, Campo Seco District, Foothill Copper Belt, Calaveras Co., California, USA": 32
Total number of bottom-level sublocalities: 31

Number of Child Localities: 31
Child Localities:
Aros Placer
Bell Prince Mine
Black Jack Lode (Black Jack Mine)
Bootjack; Hill And Emma Claims Group
Caldwell Mine (Edna)
Clover Leaf Q & Lone Star P Mine (Clover Leaf Q & Lonestar P)
Constellation Mine (San Francisco; Borger; Constitution; Meteor Claim; Constellation Claim; West Constellation Claim; Constellation Placer Claim)
Detert Deposit (Monarch Deposit)
Edna Mine
Emma Mine
Ernestine Placer (E. E. Bertagna; E. W. Davis)
Gold King No. 3 & Black Jack Mine
Holmes Ranch Occurrence [1]
Holmes Ranch Occurrence [2]
Janie Boyd Mine (Sanches; Holmes Mine)
JDM Mine
Jolly Molly Mine
Mary Ethel Placer (Leslie L. Cook Et Al)
Midas Placer Company Property
Missinger Ranch Occurrence
Monarch Mine [1] (Iron Monarch; Iron Monarch & Gertrude)
Nigger Head Shale Mine (Negro Head Shale)
Penn Mine (Happy Jack; West Constellation; Satellite; Big Satellite; Hinkcley; Blue Jay; Meteor; Hecla; Little Satellite; Copper Hill; Penn Chemical Works; Campo Seco)
Penn Mining Company Property
Reveal Penn Mining Company Property (Reveal)
San Francisco Mine (Constellation Mine; Borger; Constitution; Meteor Claim; Constellation Claim; West Constellation Claim; Constellation Placer Claim)
South Hill Mine (E & B Mining Company; E. And B. Mining Company)
Texas Mine (Edna; Viola; Alameda; Campo Seco)
Unknown Au Mine [13]
Unknown Au Mine [14]
Unnamed Au Placer [62]

Latitude: 38°13'9"N
Longitude: 120°51'10"W
Decimal Degree (lat, lon): 38.219166666667,-120.85277777778

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	Baryte	Calcite	Chalcopyrite	Clay	Copper	Covellite	Feldspar	Gypsum
Kaolinite	Malachite	Melanterite	Mica	None	Not in a structural group	Olivine	Phenakite	Pyrite	Quartz
Rocksalt	Sphalerite	Spinel	Tetrahedrite

Albite ()*	Azurite ()*	Baryte ()*	Boothite ()*	Bornite ()*
Calcite ()*	Chalcocite ()*	Chalcopyrite ()*	Chromite ()*	Chrysocolla ()*
Copper ()*	Covellite ()*	Fayalite ()*	Galena ()*	Gold ()*
Graphite ()*	Gypsum ()*	Jarosite ()*	Kaolinite ()*	Malachite ()*
Muscovite ()*	Pyrite ()*	Quartz ()*	Siderite ()*	Silver ()*
Sphalerite ()*	Tenorite ()*	Tetrahedrite-(Zn) ()*	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 Au Ba C Ca Cr Cu Fe H K Na O Pb S Sb Si Zn

Elements from minerals reported directly at this locality: Al C Cr Cu Fe Na O Si

Structural Groups for minerals in this locality:
Allophane Alunite Baryte Calcite Chalcopyrite Clay Copper Covellite Feldspar Gypsum
Kaolinite Malachite Melanterite Mica None Not in a structural group Olivine Phenakite Pyrite Quartz
Rocksalt Sphalerite Spinel Tetrahedrite

29 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	0		8803
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	170	170	1	152761	5509
Baryte ()*	Baryte	Ba(SO₄)	170	170	1	152761	11547
Boothite ()*	Melanterite	Cu(SO₄)·7H₂O	170	170	1	152761	18
Bornite ()*	None	Cu₅FeS₄	170	170	1	152761	5516
Calcite ()*	Calcite	Ca(CO₃)	170	100	2	152753,152761	27770
Chalcocite ()*	None	Cu₂S	170	170	1	152761	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	100	4	152740,152751,152753,152761	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	170	170	0		3902
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	170	170	1	152761	3531
Copper ()*	Copper	Cu	170	100	2	152743,152761	3846
Covellite ()*	Covellite	CuS	170	170	1	152761	4165
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)	100	100	1	152762	371
Galena ()*	Rocksalt	PbS	170	100	2	152751,152761	24243
Gold ()*	Copper	Au	170	100	17	152739,152741,152742,152743,152744,152747,152748,152749,152750,152753,152755,152760,152761,152766,152767,152768,152769	30554
Graphite ()*	None	C	100	100	2	152741,152750	2812
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	170	170	1	152761	6890
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	170	170	1	152761	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	170	170	1	152761	5591
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	170	170	1	152761	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	170	170	1	152761	17380
Pyrite ()*	Pyrite	FeS₂	170	100	4	152740,152743,152751,152761	39462
Quartz ()*	Quartz	SiO₂	170	100	12	152741,152742,152744,152747,152748,152750,152751,152753,152755,152760,152761,152767	61156
Siderite ()*	Calcite	Fe(CO₃)	170	170	0		6417
Silver ()*	Copper	Ag	100	100	2	152743,152757	5186
Sphalerite ()*	Sphalerite	ZnS	170	100	2	152751,152761	21482
Tenorite ()*	None	CuO	170	170	0		1101
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃	170	170	1	152761	5317
Willemite ()*	Phenakite	Zn₂SiO₄	100	100	1	152762	303

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	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	Age Notes
	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

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...