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

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

mindat Locality ID: 216268
mindat URL: http://www.mindat.org/loc-216268.html

Tectonic Settings:

Total number of sublocalities beneath "Bummerville, West Point District, East Belt, Calaveras Co., California, USA": 47
Total number of bottom-level sublocalities: 46

Number of Child Localities: 46
Child Localities:
Alaska Mine (Fredda Enterprise Mine)
Alliance Mine
Austrian Mine
Bartola Mine (Bartola Annex; Excelsior)
Bear Creek Occurrence
Bettis Placer Mine
Billy Williams Mine
Blazing Star Mine (Water Lily Mine)
Boston Flat Mine
Calendar Mine
Cross Mine
Dominion Group
Ferguson Mine (Cargo Hill)
Fredda Mine
Galena-Gold Hill Mine (Gold-Galena Mine)
General Arthur Mine
Gilbertson Mine
Gold Bug Mine
Golden Rule Mine
Great Eastern & Oriental Mine
John Henry Mine (John Henery Mine)
Keltz Mine
King Solomon Mine
Last Chance Mine [2] (Last Chance Twp 7; Last Chance Township 7)
Little Gulch Mine (Little Gulch; Opal And Red Wonder Claims)
Lockwood Mine (Mina Rica Mine)
Marino Mine (Marine Mine)
Marquis Mine
Matrimony Mine (Matrimont Mine)
Mexican Mine [1]
Modoc Mine (Modoe Mine)
Never Sweat Mine [2] (Neversweat)
Nixon Mine
North Star Mine [3] (Zacatera Mine)
Okium & Okium North Extension Mine (Okium & Okium N. Ext.; Okium And Okium N Extension; Oakum)
Old Gray Mine
Old Henry Mine (Eureka Mine [4]; Old Henery)
Pride Of Bummerville Mine
Scorpion Mine
Soren Mine
Spring Gulch Mine
Star Of The West Mine
Tucker Mine (Sugar Pine And Valentine Quartz)
Unnamed Au Prospects [66]
Wickham & Buhlert Mine
Wide West Mine

Latitude: 38°24'40"N
Longitude: 120°29'49"W
Decimal Degree (lat, lon): 38.411111111111,-120.49694444444

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.

Chalcopyrite	Clay	Copper	Nickeline	None	Pyrite	Quartz	Rocksalt	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 Cu Fe H Mg O Pb S Si

Elements from minerals reported directly at this locality:

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

7 IMA Minerals at location:

Chalcopyrite ()*	Galena ()*	Gold ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	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
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	100	100	1	152625	27198
Galena ()*	Rocksalt	PbS	100	100	4	152632,152639,152642,152646	24243
Gold ()*	Copper	Au	100	100	41	152618,152619,152620,152621,152624,152625,152626,152627,152628,152630,152631,152632,152633,152634,152635,152636,152637,152638,152639,152640,152641,152642,152643,152645,152646,152647,152648,152649,152651,152652,152653,152654,152655,152656,152657,152658,152659,152660,152661,152663,152664	30554
Pyrite ()*	Pyrite	FeS₂	100	100	3	152632,152642,152646	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	100	100	2	152625,152643	9056
Quartz ()*	Quartz	SiO₂	100	100	36	152619,152621,152624,152625,152626,152627,152628,152630,152631,152632,152633,152634,152635,152636,152637,152638,152639,152640,152641,152642,152643,152645,152646,152647,152648,152649,152651,152653,152656,152657,152658,152659,152660,152661,152663,152664	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	100	100	1	152642	3337

1 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

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...