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:
Spenceville District, Nevada Co., California, USA

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

mindat Locality ID: 268858
mindat URL: http://www.mindat.org/loc-268858.html

Tectonic Settings:

Total number of sublocalities beneath "Spenceville District, Nevada Co., California, USA": 31
Total number of bottom-level sublocalities: 28

Number of Child Localities: 3
Child Localities:
Higgins Corner
Limekiln
Spenceville

Latitude: 39°4'59"N
Longitude: 121°9'59"W
Decimal Degree (lat, lon): 39.083055555556,-121.16638888889

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	Baryte	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum	Covellite	Epidote
Garnet	Humite	Kaolinite	Malachite	Marcasite	None	Not in a structural group	Olivine	Pyrite	Quartz
Rhodonite	Rocksalt	Rutile	Serpentine	Sphalerite	Spinel

Baryte ()*	Bementite ()*	Bornite ()*	Calcite ()*	Caryopilite ()*
Chalcocite ()*	Chalcopyrite ()*	Covellite ()*	Cuprite ()*	Epidote ()*
Galena ()*	Gold ()*	Hausmannite ()*	Hematite ()*	Jacobsite ()*
Kaolinite ()*	Malachite ()*	Manganite ()*	Marcasite ()*	Neotocite ()*
Pyrite ()*	Pyrolusite ()*	Pyrophanite ()*	Quartz ()*	Rhodochrosite ()*
Rhodonite ()*	Silver ()*	Sonolite ()*	Spessartine ()*	Sphalerite ()*
Tephroite ()*

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 Cu Fe H Mn O Pb S Si Ti Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Baryte Calcite Chalcopyrite Clay Clinozoisite Copper Corundum Covellite Epidote
Garnet Humite Kaolinite Malachite Marcasite None Not in a structural group Olivine Pyrite Quartz
Rhodonite Rocksalt Rutile Serpentine Sphalerite Spinel

31 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
Baryte ()*	Baryte	Ba(SO₄)			1	166308	11547
Bementite ()*	Clay	Mn₇Si₆O₁₅(OH)₈			1	166302	173
Bornite ()*	None	Cu₅FeS₄	170	170	4	166313,166316,166319,166322	5516
Calcite ()*	Calcite	Ca(CO₃)			3	166303,166306,166311	27770
Caryopilite ()*	Clay Serpentine	Mn²⁺₃Si₂O₅(OH)₄			2	166302,166306	83
Chalcocite ()*	None	Cu₂S	170	170	1	166322	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	170	170	9	166297,166311,166312,166313,166316,166318,166319,166320,166322	27198
Covellite ()*	Covellite	CuS	170	170	1	166322	4165
Cuprite ()*	Not in a structural group	Cu₂O			1	166319	2970
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			1	166311	8173
Galena ()*	Rocksalt	PbS			1	166311	24243
Gold ()*	Copper	Au			6	166299,166300,166301,166311,166314,166317	30554
Hausmannite ()*	Spinel	Mn²⁺Mn³⁺₂O₄			2	166302,166306	350
Hematite ()*	Corundum	Fe₂O₃			1	166308	14640
Jacobsite ()*	Spinel	Mn²⁺Fe³⁺₂O₄			1	166306	172
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	166308	5591
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			4	166297,166308,166313,166324	12537
Manganite ()*	Rutile	Mn³⁺O(OH)			1	166306	770
Marcasite ()*	Marcasite	FeS₂	170	170	1	166322	5674
Neotocite ()*	Allophane	(Mn,Fe)SiO₃·H₂O (?)			1	166302	186
Pyrite ()*	Pyrite	FeS₂	170	170	8	166297,166301,166302,166311,166318,166319,166322,166324	39462
Pyrolusite ()*	Rutile	MnO₂			1	166306	3106
Pyrophanite ()*	Corundum	Mn²⁺TiO₃			1	166306	244
Quartz ()*	Quartz	SiO₂	170	170	11	166300,166303,166308,166311,166313,166314,166316,166317,166319,166321,166322	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)			2	166302,166306	1711
Rhodonite ()*	Rhodonite	CaMn₃Mn(Si₅O₁₅)			2	166302,166306	969
Silver ()*	Copper	Ag			1	166311	5186
Sonolite ()*	Humite	Mn²⁺₉(SiO₄)₄(OH)₂			1	166302	50
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			1	166302	1214
Sphalerite ()*	Sphalerite	ZnS			1	166311	21482
Tephroite ()*	Olivine	Mn²⁺₂(SiO₄)			2	166302,166306	240

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
	vms-01042	170	170	Middle-Upper Jurassic										S	84746	Spenceville Mine (Spense Mineral; San Francisco Copper Company; Copper Claim; Imperial Paint And Copper Co. Property), Spenceville, Spenceville District, Nevada Co., California, USA	Spenceville	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...