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:
Forbestown, Forbestown District, Butte Co., California, USA

Oldest recorded age at locality: 204
Youngest recorded age at locality: 204

mindat Locality ID: 215849
mindat URL: http://www.mindat.org/loc-215849.html

Tectonic Settings:

Total number of sublocalities beneath "Forbestown, Forbestown District, Butte Co., California, USA": 38
Total number of bottom-level sublocalities: 36

Number of Child Localities: 32
Child Localities:
Arlington Placer Mine
Burlington Prospect
Carlisle Mine (Carlysle Mine)
Church Lode Mine
Denver Mine
Dewey Lode Mine
Equitable Mine
Fayette And La Shalle Mine
Forbestown Consolidated Gold Mines (Gold Bank Mine; Gold Bank Consolidated Quartz Mine; Pine Grove Gold Bank Consolidated Mine)
Garden Ranch Mining Company Placer Mine
Garibaldi Mine
Grand View Mine
Honey Comb Quartz Mine (Honey Comb Mine)
Keystone And Golden Fashee Mine
Levant Quartz Mine
Lewis Mine
Mammoth Lode Mine
Midas Mine
New York Mine
P.U.P. Mine (P.U.P. Zenith Mine; Zenith Chrome Mining Company Mine; Zenith Mine)
Pauline Placer Mine
Primal Lode Mine
Rattlesnake Quartz Mine
Sampson Lode Mine
Shakespeare Prospect (Shakespeare Property)
Star Light Mine
Stowe Home Pine Grove Quartz Mine (Stowe Home Pine Mine)
Unnamed Au Mine (82)
Unnamed Au Occurrence (45)
Unnamed Au Prospect (90)
Unspecified Rose Quartz Occurrence (1)
William George Lode Mine

Latitude: 39°32'4"N
Longitude: 121°16'36"W
Decimal Degree (lat, lon): 39.534444444444,-121.27666666667

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	Chlorite	Clay	Copper	None	Quartz	Rocksalt	Spinel	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: Al Au Cr Cu Fe H Mg O Pb S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Chalcopyrite Chlorite Clay Copper None Quartz Rocksalt Spinel Talc

7 IMA Minerals at location:

Chalcopyrite ()*	Clinochlore ()*	Galena ()*	Gold ()*	Magnesiochromite ()*
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			1	151539	27198
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈			1	151539	1756
Galena ()*	Rocksalt	PbS			1	151533	24243
Gold ()*	Copper	Au			29	151531,151532,151533,151534,151535,151536,151537,151538,151539,151545,151546,151547,151548,151549,151550,151551,151552,151553,151554,151555,151557,151558,151559,151560,151561,151562,151563,151564,151568	30554
Magnesiochromite ()*	Spinel	MgCr₂O₄	204	204	1	151556	311
Quartz ()*	Quartz	SiO₂			26	151532,151533,151534,151535,151536,151537,151538,151539,151546,151547,151548,151549,151550,151552,151553,151554,151555,151558,151559,151560,151561,151562,151563,151564,151567,151568	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	204	204	1	151556	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
	podchrome-00219	204	204	Upper Triassic-Lower Jurassic or older (204±2 Ma U-Pb zircon on leucodiorite)										Cr	74266	P.U.P. Mine (P.U.P. Zenith Mine; Zenith Chrome Mining Company Mine; Zenith Mine), Forbestown, Forbestown District, Butte Co., California, USA	P.U.P.	Moiser et al. (2012)		USGSSIR2012_5157

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...