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:
Trojan, San Bernardino Co., California, USA


mindat Locality ID: 209274
mindat URL: http://www.mindat.org/loc-209274.html

Tectonic Settings:

Total number of sublocalities beneath "Trojan, San Bernardino Co., California, USA": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Dish Hill Crater (Dish Hill; Siberia Hill; Siberia Hill Crater)

Latitude: 34°36'35"N
Longitude: 115°56'38"W
Decimal Degree (lat, lon): 34.609722222222,-115.94388888889
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 C Ca Cu Fe H K Mg Na O S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleClayCorundumHydrotalciteMicaNoneOlivinePseudobrookitePyroxeneSpinel
Woodwardite

13 IMA Minerals at location:
Augite  (*)Clinoenstatite  (*)Dolomite  (*)Forsterite  (*)Hematite  (*)
Ilmenite  (*)Kaersutite  (*)Magnetite  (*)Phlogopite  (*)Pseudobrookite  (*)
Quintinite  (*)Spinel  (*)Woodwardite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O611739832060
Clinoenstatite  (*)PyroxeneMg2Si2O6117398394
Dolomite  (*)NoneCaMg(CO3)211739839895
Forsterite  (*)OlivineMg2(SiO4)11739831188
Hematite  (*)CorundumFe2O3117398314640
Ilmenite  (*)CorundumFe2+Ti4+O311739835433
Kaersutite  (*)AmphiboleNaCa2(Mg3AlTi4+)(Si6Al2)O22O21173983179
Magnetite  (*)SpinelFe2+Fe3+2O4117398314899
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)211739832273
Pseudobrookite  (*)Pseudobrookite(Fe3+2Ti)O51173983164
Quintinite  (*)HydrotalciteMg4Al2(OH)12(CO3)·3H2O11739838
Spinel  (*)SpinelMgAl2O411739831934
Woodwardite  (*)Woodwardite Hydrotalcite(Cu1-xAlx)(SO4)x/2(OH)2·nH2O (x < 0.5, n < 3x/2)117398357


No ages have been assigned to this locality yet.
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