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:
Rand District (Randsburg District), San Bernardino Co., California, USA


mindat Locality ID: 210939
mindat URL: http://www.mindat.org/loc-210939.html

Tectonic Settings:

Total number of sublocalities beneath "Rand District (Randsburg District), San Bernardino Co., California, USA": 43
Total number of bottom-level sublocalities: 41

Number of Child Localities: 2
Child Localities:
Red Mountain [summit]
Red Mountain [town] (Osdick)

Latitude: 35°21'22"N
Longitude: 117°35'16"W
Decimal Degree (lat, lon): 35.356111111111,-117.58777777778
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: Ag Al As Au Ca Cl Cu Fe H K Mg O Pb S Sb Si W 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneArsenopyriteClayCopperHalotrichiteMelanteriteMicaNoneQuartzRocksalt
ScheeliteTetrahedriteXanthoconite

17 IMA Minerals at location:
Allophane  (*)Arsenopyrite  (*)Cervantite  (*)Chlorargyrite  (*)Freibergite  (*)
Galena  (*)Gold  (*)Melanterite  (*)Miargyrite  (*)Muscovite  (*)
Pickeringite  (*)Proustite  (*)Pyrargyrite  (*)Pyrostilpnite  (*)Quartz  (*)
Scheelite  (*)Silver  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O1173174470
Arsenopyrite  (*)ArsenopyriteFeAsS11731749052
Cervantite  (*)NoneSb3+Sb5+O41173174352
Chlorargyrite  (*)RocksaltAgCl3173174,173179,1731981382
Freibergite  (*)TetrahedriteAg6[Cu4Fe2]Sb4S121173174663
Galena  (*)RocksaltPbS117317424243
Gold  (*)CopperAu117319530554
Melanterite  (*)MelanteriteFe(SO4)·7H2O1173174915
Miargyrite  (*)NoneAgSbS23173174,173179,173198300
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2117320617380
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O1173174265
Proustite  (*)NoneAg3AsS33173174,173179,173198733
Pyrargyrite  (*)NoneAg3SbS33173174,173179,1731981425
Pyrostilpnite  (*)XanthoconiteAg3SbS3117317484
Quartz  (*)QuartzSiO22173174,17319561156
Scheelite  (*)ScheeliteCa(WO4)11731894894
Silver  (*)CopperAg11731745186


No ages have been assigned to this locality yet.
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