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:
Randalls, Mount Monger Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia

Oldest recorded age at locality: 2680
Youngest recorded age at locality: 2600

mindat Locality ID: 271662
mindat URL: http://www.mindat.org/loc-271662.html

Tectonic Settings:

Total number of sublocalities beneath "Randalls, Mount Monger Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia": 15
Total number of bottom-level sublocalities: 15

Number of Child Localities: 15
Child Localities:
Cock-Eyed Bob Gold Mine
Duchess Of York Gold Prospect
Emu Gold Prospect
Gessner's Gold Mine
Jones' Find Gold Mine
Juglah Gold Mine (Mount Juglah; Transville)
Kiaki Soaks Gold Prospect
Lucky Bay Gold Prospect
Maxwells Gold Mine
Randalls Dam Gold Prospect
Rising Sun Gold Mine
Rumbles Gold Mine
Salt Creek Gold Mine
Santa Gold Mine (Craze; Cressfield)
Trans Gold Mine

Latitude: 30°58'38"S
Longitude: 122°6'39"E
Decimal Degree (lat, lon): -30.977222222222,122.11083333333
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 As Au C Ca Cu Fe H K Mg O Pb S Si Ti 

Elements from minerals reported directly at this locality: Al C Ca Fe H Mg O Si Ti 

Structural Groups for minerals in this locality: 
AmphiboleArsenopyriteChalcopyriteChloriteClayCopperCorundumMicaNickelineNone
PyriteQuartzRocksaltSpinel

16 IMA Minerals at location:
Actinolite  (*)Ankerite  (*)Arsenopyrite  (*)Chalcopyrite  (*)Chamosite  (*)
Ferro-tschermakite  (*)Galena  (*)Gold  (*)Grunerite  (*)Hematite  (*)
Ilmenite  (*)Magnetite  (*)Muscovite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2268026001169373419
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)22680260003092
Arsenopyrite  (*)ArsenopyriteFeAsS26802600316934,16937,169399052
Chalcopyrite  (*)ChalcopyriteCuFeS22680260011693927198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)826802600116939577
Ferro-tschermakite  (*)Amphibole   Ca2(Fe2+3Al2)(Si6Al2)O22(OH)226802600027
Galena  (*)RocksaltPbS2680260011693624243
Gold  (*)CopperAu268026001516926,16927,16928,16929,16930,16931,16932,16933,16934,16935,16936,16937,16938,16939,1694030554
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)2268026000223
Hematite  (*)CorundumFe2O326802600014640
Ilmenite  (*)CorundumFe2+Ti4+O32680260005433
Magnetite  (*)SpinelFe2+Fe3+2O426802600316933,16937,1693914899
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22680260011693017380
Pyrite  (*)PyriteFeS226802600416932,16934,16936,1693939462
Pyrrhotite  (*)NickelineFe7S826802600416933,16934,16937,169399056
Quartz  (*)QuartzSiO2268026001016926,16927,16928,16930,16934,16936,16937,16938,16939,1694061156


2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
EG90_845-00003267826702674±4Pb-Pb zircon  YesZircon  223Kalgoorlie-Boulder Shire, Western Australia, Australia Kent and McDougall (1995)10.2113/gsecongeo.90.4.845EG90_845 
Hg-0011726802600 Ar-Ar, U-Pb high   YesColoradoiteHg223Kalgoorlie-Boulder Shire, Western Australia, Australia Kent and McDougall (1995)10.2113/gsecongeo.90.4.845EG90_845 

SampleSource LocalityReference URL

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