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:
West Point, West Point District, East Belt, Calaveras Co., California, USA

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

mindat Locality ID: 209360
mindat URL: http://www.mindat.org/loc-209360.html

Tectonic Settings:

Total number of sublocalities beneath "West Point, West Point District, East Belt, Calaveras Co., California, USA": 40
Total number of bottom-level sublocalities: 40

Number of Child Localities: 40
Child Localities:
Annapolis Mine (Wilson Mine)
Auction Occurrence
Bald Rock Occurrence
Blackstone Mine
Blue Bell Mine (Crown Point; Crown Point Extension; Blue Bell Extension)
Boulder Nos. 2; 3; And 4 Claims
Buena Vista Mine [1] (Los Gatos Mine; Buena Fortuna Mine)
Calaveras-Columbus Mine (Columbus; Amador-Columbus)
Carlton Mine (Phillips & Mason Mine)
Centennial Mine (New Champion Mine)
Champion Mine (Haskins Mine)
Chino Mine (Novella Mine)
Continental Mine
Crown Point And Teirakoff Mine
Deerfoot Mine (Gilbertson Mine)
Easy Nights Claim
Ever Ready Mine
Gold Valley Mine
Granite Mine
Humming Bird Mine
Johnstone Mine (L.G. Johnstone Mine)
Linnet Mine
Littlefield Mine
Lone Star Mine [1] (Reed & Hillary Mine; Lone Star Reed & Hillary)
Mohican Mine
Monmouth Mine
Old Whisky Mine (Whiskey Claim; Whiskey Lead)
Riverside Mine [2]
Riverside Placer (Riverside Et Al; Calaveras Corp.)
Sandbar No. 1 Mine (Sand Bar No. 1 Mine)
Steger & Josephine Claims (Steger Claim; Josephine Claim)
Swallow Mine
Sweepstakes Mine
Texas Mine (Auction [?])
The Point Quartz Mining Claim (The Point Quartz Mine)
W. R. Mine
West Point Consolidated Mine
Woodhouse Mine
Yanix Mine
Yellow Aster Mine (Yellow Star Mine)

Latitude: 38°23'58"N
Longitude: 120°33'44"W
Decimal Degree (lat, lon): 38.399444444444,-120.56222222222

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.

Calcite	Chalcopyrite	Clay	Copper	Marcasite	Nickeline	None	Pyrite	Quartz	Rocksalt
Sphalerite	Talc

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: Au C Ca Cu Fe H Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Fe S

Structural Groups for minerals in this locality:
Calcite Chalcopyrite Clay Copper Marcasite Nickeline None Pyrite Quartz Rocksalt
Sphalerite Talc

10 IMA Minerals at location:

Calcite ()*	Chalcopyrite ()*	Galena ()*	Gold ()*	Marcasite ()*
Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Sphalerite ()*	Talc ()*

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
Calcite ()*	Calcite	Ca(CO₃)	100	100	1	152705	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	100	100	3	152671,152677,152707	27198
Galena ()*	Rocksalt	PbS	100	100	5	152671,152677,152678,152705,152707	24243
Gold ()*	Copper	Au	170	100	34	152668,152670,152671,152672,152674,152675,152676,152677,152678,152679,152680,152681,152682,152683,152684,152685,152687,152688,152689,152690,152691,152692,152693,152694,152695,152697,152698,152699,152700,152701,152702,152705,152706,152707	30554
Marcasite ()*	Marcasite	FeS₂	170	170	0		5674
Pyrite ()*	Pyrite	FeS₂	100	100	3	152671,152677,152707	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	100	100	2	152675,152691	9056
Quartz ()*	Quartz	SiO₂	170	100	28	152668,152671,152672,152675,152677,152678,152681,152682,152683,152684,152685,152687,152688,152689,152690,152691,152692,152694,152695,152697,152698,152699,152700,152701,152702,152705,152706,152707	61156
Sphalerite ()*	Sphalerite	ZnS	100	100	2	152671,152677	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	100	100	1	152678	3337

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							Yes			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...