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:
Leona Heights, Oakland, Oakland Hills (San Leandro Hills), Diablo Range, Alameda Co., California, USA


mindat Locality ID: 28970
mindat URL: http://www.mindat.org/loc-28970.html

Tectonic Settings:

Total number of sublocalities beneath "Leona Heights, Oakland, Oakland Hills (San Leandro Hills), Diablo Range, Alameda Co., California, USA": 6
Total number of bottom-level sublocalities: 5

Number of Child Localities: 4
Child Localities:
Alum Mine
John D. Hoff Asbestos Company Mine (John D. Hoff Asbestos Company Prospect)
Leona Heights Deposit
Leona Quarry (Leona Quarry And Mills)

Latitude: 37°47'34"N
Longitude: 122°9'48"W
Decimal Degree (lat, lon): 37.792777777778,-122.16333333333
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 Cu Fe H Mg Na O S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteChalcanthiteChalcopyriteClayCopiapiteCopperCorundumEpsomiteHalotrichiteHexahydrite
MelanteriteNoneNot in a structural groupPyriteRoseliteRömeriteSerpentineSphalerite

20 IMA Minerals at location:
Alunogen  (*)Baryte  (*)Boothite  (*)Bornite  (*)Chalcanthite  (*)
Chalcocite  (*)Chalcopyrite  (*)Chrysotile  (*)Copiapite  (*)Copper  (*)
Epsomite  (*)Halotrichite  (*)Hematite  (*)Hexahydrite  (*)Kröhnkite  (*)
Melanterite  (*)Pentahydrite  (*)Pyrite  (*)Römerite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alunogen  (*)Not in a structural groupAl2(SO4)3(H2O)12·5H2O2150476,150477272
Baryte  (*)BaryteBa(SO4)115047511547
Boothite  (*)MelanteriteCu(SO4)·7H2O2150476,15047718
Bornite  (*)NoneCu5FeS411504775516
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O2150476,150477925
Chalcocite  (*)NoneCu2S11504775707
Chalcopyrite  (*)ChalcopyriteCuFeS22150476,15047727198
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41150474951
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O2150476,150477382
Copper  (*)CopperCu2150476,1504773846
Epsomite  (*)EpsomiteMg(SO4)·7H2O2150476,150477484
Halotrichite  (*)HalotrichiteFe2+Al2(SO4)4·22H2O2150476,150477409
Hematite  (*)CorundumFe2O32150476,15047714640
Hexahydrite  (*)HexahydriteMg(SO4)·6H2O2150476,150477251
Kröhnkite  (*)RoseliteNa2Cu(SO4)2·2H2O2150476,15047727
Melanterite  (*)MelanteriteFe(SO4)·7H2O1150476915
Pentahydrite  (*)ChalcanthiteMg(SO4)·5H2O115047632
Pyrite  (*)PyriteFeS23150473,150476,15047739462
Römerite  (*)RömeriteFe2+Fe3+2(SO4)4·14H2O2150476,150477115
Sphalerite  (*)SphaleriteZnS115047721482


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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