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:
East Foothills, Black Wonder District, Diablo Range, Santa Clara Co., California, USA


mindat Locality ID: 227084
mindat URL: http://www.mindat.org/loc-227084.html

Tectonic Settings:

Total number of sublocalities beneath "East Foothills, Black Wonder District, Diablo Range, Santa Clara Co., California, USA": 10
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
Alum Rock Canyon
Blackbird Prospect
Frankel Prospect
Mateos Ranch Occurrence
McCoy Mine
Miller Mine
San Jose Mine
Unnamed Stone Quarry [9]
Unspecified Zeolite Occurrence [4]
Wallace Ranch Occurrence

Latitude: 37°24'21"N
Longitude: 121°47'21"W
Decimal Degree (lat, lon): 37.405833333333,-121.78916666667
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe 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.

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 Ba C Ca Cl H K Mg Mn Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AtacamiteBaryteBruciteCalciteClayHumiteNoneNot in a structural groupQuartzRocksalt
Spinel

11 IMA Minerals at location:
Alabandite  (*)Alleghanyite  (*)Baryte  (*)Ganophyllite  (*)Hausmannite  (*)
Hydromagnesite  (*)Kempite  (*)Laumontite  (*)Pyrochroite  (*)Quartz  (*)
Rhodochrosite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alabandite  (*)RocksaltMnS1176062312
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)2117606277
Baryte  (*)BaryteBa(SO4)117606211547
Ganophyllite  (*)Clay(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)117606245
Hausmannite  (*)SpinelMn2+Mn3+2O41176062350
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O1176056341
Kempite  (*)AtacamiteMn2+2Cl(OH)311760623
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O11760641271
Pyrochroite  (*)BruciteMn2+(OH)2117606256
Quartz  (*)QuartzSiO2117605961156
Rhodochrosite  (*)CalciteMn(CO3)11760621711


No ages have been assigned to this locality yet.
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