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:
Randall Property, Brovard, Rand District, Mineral Co., Nevada, USA


mindat Locality ID: 49129
mindat URL: http://www.mindat.org/loc-49129.html

Tectonic Settings:

Total number of sublocalities beneath "Randall Property, Brovard, Rand District, Mineral Co., Nevada, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Brovard Mine (Bovard Mine)
Koegel Mine
Nevada Rand Mine
Rand Mine

Latitude: 38°47'11"N
Longitude: 118°24'23"W
Decimal Degree (lat, lon): 38.786388888889,-118.40638888889
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 Au C Ca Cl Cu Fe H K Mo O Pb S Sb Si Te 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAllophaneAragoniteCalciteChalcopyriteClinozoisiteCopperCorundumEpidoteMalachite
MeloniteNonePolybasitePyriteQuartzRocksaltScheeliteTetrahedrite

19 IMA Minerals at location:
Acanthite  (*)Alunite  (*)Calaverite  (*)Calcite  (*)Cerussite  (*)
Chalcopyrite  (*)Chlorargyrite  (*)Chrysocolla  (*)Epidote  (*)Gold  (*)
Hematite  (*)Malachite  (*)Polybasite  (*)Pyrargyrite  (*)Pyrite  (*)
Quartz  (*)Tenorite  (*)Tetrahedrite-(Zn)  (*)Wulfenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S4239353,239354,239355,2393562793
Alunite  (*)NoneKAl3(SO4)2(OH)61239355966
Calaverite  (*)MeloniteAuTe21239356361
Calcite  (*)CalciteCa(CO3)123935527770
Cerussite  (*)AragonitePb(CO3)12393554979
Chalcopyrite  (*)ChalcopyriteCuFeS22239353,23935527198
Chlorargyrite  (*)RocksaltAgCl4239353,239354,239355,2393561382
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12393553531
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12393558173
Gold  (*)CopperAu4239353,239354,239355,23935630554
Hematite  (*)CorundumFe2O3123935514640
Malachite  (*)MalachiteCu2(CO3)(OH)2123935512537
Polybasite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(Sb,As)2S7]1239355716
Pyrargyrite  (*)NoneAg3SbS312393551425
Pyrite  (*)PyriteFeS22239353,23935539462
Quartz  (*)QuartzSiO24239353,239354,239355,23935661156
Tenorite  (*)NoneCuO12393551101
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1312393555317
Wulfenite  (*)ScheelitePbMoO412393551655


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

All age data...

Other copyright data...