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:
Vallecito, Vallecito District, Calaveras Co., California, USA

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

mindat Locality ID: 220494
mindat URL: http://www.mindat.org/loc-220494.html

Tectonic Settings:

Total number of sublocalities beneath "Vallecito, Vallecito District, Calaveras Co., California, USA": 43
Total number of bottom-level sublocalities: 41

Number of Child Localities: 36
Child Localities:
Balaklava Mine (I. X. L. Mine)
Batten Ranch Placer Prospect
Birney Mine (Birney And Golden Slip)
Bonney Placer Mine
Bowling Green Placer
Canepa Golden Queen Mine
Columbia Deposit
Consolidated River Placer (Alfred Gianelli)
Coyote Creek
Duck Bar Placer (Duck Bar Placer Claims)
Dutchess Consolidated Mine (Dutchess; Hoosier Dutchess; Little Dutchess; Grand Dutchess)
Golden River Mine
Houston Brothers Dredge
Isabel Mine
Janokis Ranch
Manitou Placer Mine
Manzanita Occurrence (John Valente; John Vale)
Moaning Cavern
Mount Nebo Mine (Mt Nebo Mine)
Moyle Mine
Oversite Mine
Ozark Placer
Quartz Hill Placer
Radium No. 1 Occurrence
Red Hill Mine
San Andreas Placers
Simi Occurrence
Smythe Mine
Sunrise Mine [1]
Unnamed Au Mines [8]
Unnamed Hornblende Occurrence [1]
Unnamed Stone Quarry [3]
Val Ranch Placer (Roosevelt)
Vandervoort Mining Company Property (Vandervoot)
White Brothers Occurrence (Wm. P. Mobley)
Zurchert Property

Latitude: 38°5'7"N
Longitude: 120°28'38"W
Decimal Degree (lat, lon): 38.085277777778,-120.47722222222

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.

Aragonite	Clay	Copper	Diaspore	None	Pyrite	Quartz	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 C Ca Cr Fe H Mg O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Clay Copper Diaspore None Pyrite Quartz Spinel Talc

7 IMA Minerals at location:

Aragonite ()*	Chromite ()*	Diaspore ()*	Gold ()*	Pyrite ()*
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
Aragonite ()*	Aragonite	Ca(CO₃)	100	100	1	153419	3250
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	100	100	1	153425	3902
Diaspore ()*	Diaspore	AlO(OH)	100	100	1	153425	481
Gold ()*	Copper	Au	100	100	26	153410,153413,153414,153415,153417,153420,153421,153423,153424,153426,153427,153430,153431,153432,153435,153436,153437,153438,153439,153441,153442,153444,153445,153449,153450,153451	30554
Pyrite ()*	Pyrite	FeS₂	100	100	3	153412,153421,153441	39462
Quartz ()*	Quartz	SiO₂	100	100	6	153421,153424,153435,153441,153444,153445	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	100	100	2	153412,153433	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...