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:
Pennsylvania Mine, Sugarloaf Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USA


mindat Locality ID: 25078
mindat URL: http://www.mindat.org/loc-25078.html

Tectonic Settings:

Total number of sublocalities beneath "Pennsylvania Mine, Sugarloaf Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 37°20'11"N
Longitude: 121°29'30"W
Decimal Degree (lat, lon): 37.336388888889,-121.49166666667
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 Cu Fe H Mg Mn Na O S Si V 

Elements from minerals reported directly at this locality: Al Ba C Ca Cu Fe H Mg Mn Na O S Si V 

Structural Groups for minerals in this locality: 
AmphiboleBaryteBrauniteCalciteChalcopyriteCopperCristobaliteHarmotomeHumiteNone
QuartzRhodoniteSpinelWelinite

18 IMA Minerals at location:
Baryte  (*)Braunite  (*)Calcite  (*)Chalcopyrite  (*)Copper  (*)
Cristobalite  (*)Franciscanite  (*)Gageite  (*)Harmotome  (*)Hausmannite  (*)
Howieite  (*)Kutnohorite  (*)Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)
Riebeckite  (*)Santaclaraite  (*)Sonolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)011547
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)0483
Calcite  (*)CalciteCa(CO3)027770
Chalcopyrite  (*)ChalcopyriteCuFeS2027198
Copper  (*)CopperCu03846
Cristobalite  (*)CristobaliteSiO20453
Franciscanite  (*)WeliniteMn2+6(V5+   )(SiO4)2O3(OH)303
Gageite  (*)NoneMn2+21Si8O27(OH)20014
Harmotome  (*)HarmotomeBa2(Si12Al4)O32·12H2O0290
Hausmannite  (*)SpinelMn2+Mn3+2O40350
Howieite  (*)NoneNa(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10016
Kutnohorite  (*)NoneCaMn2+(CO3)20234
Quartz  (*)QuartzSiO2061156
Rhodochrosite  (*)CalciteMn(CO3)01711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)0969
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)20375
Santaclaraite  (*)NoneCaMn2+4Si5O14(OH)2·H2O02
Sonolite  (*)HumiteMn2+9(SiO4)4(OH)2050


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL
R060056Pennsylvania Mine, Sugarloaf Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USAhttps://rruff.info/R060056
R060346Pennsylvania Mine, Sugarloaf Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USAhttps://rruff.info/R060346

All locality data graciously provided by mindat.org

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