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:
Grenfell, Forbes Co., New South Wales, Australia

Oldest recorded age at locality: 445
Youngest recorded age at locality: 420

mindat Locality ID: 29889
mindat URL: http://www.mindat.org/loc-29889.html

Tectonic Settings:

Total number of sublocalities beneath "Grenfell, Forbes Co., New South Wales, Australia": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Grenfell Mine
Hoskins Mine

Latitude: 33°46'40"S
Longitude: 148°5'30"E
Decimal Degree (lat, lon): -33.777777777778,148.09166666667

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 C Ca Fe H K Li Mg Mn Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleAragoniteBaryteBrauniteCalciteClayFeldsparGarnetMicaMilarite
NoneOlivinePectolitePyritePyroxeneQuartzRhodoniteSerpentineSpinel

31 IMA Minerals at location:
Aegirine  (*)Albite  (*)Andradite  (*)Arfvedsonite  (*)Baryte  (*)
Braunite  (*)Calcite  (*)Calderite  (*)Caryopilite  (*)Ferri-leakeite  (*)
Grossular  (*)Hausmannite  (*)Katophorite  (*)Magnesio-arfvedsonite  (*)Magnetite  (*)
Mangano-ferri-eckermannite  (*)Mangano-mangani-ungarettiite  (*)Microcline  (*)Namansilite  (*)Norrishite  (*)
Oxo-mangani-leakeite  (*)Pectolite  (*)Pyrite  (*)Quartz  (*)Rhodochrosite  (*)
Rhodonite  (*)Serandite  (*)Spessartine  (*)Sugilite  (*)Tephroite  (*)
Witherite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O6445420171831022
Albite  (*)FeldsparNa(AlSi3O8)445420171838803
Andradite  (*)GarnetCa3Fe3+2(SiO4)3445420171831534
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)244542017183295
Baryte  (*)BaryteBa(SO4)4454201718311547
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)44542017183483
Calcite  (*)CalciteCa(CO3)4454201718327770
Calderite  (*)GarnetMn2+3Fe3+2(SiO4)34454201718317
Caryopilite  (*)Clay SerpentineMn2+3Si2O5(OH)44454201718383
Ferri-leakeite  (*)AmphiboleNaNa2(Mg2Fe3+2Li)Si8O22(OH)2445420171834
Grossular  (*)GarnetCa3Al2(SiO4)3445420171831544
Hausmannite  (*)SpinelMn2+Mn3+2O444542017183350
Katophorite  (*)AmphiboleNa(NaCa)(Mg4Al)(Si7Al)O22(OH)24454201718346
Magnesio-arfvedsonite  (*)AmphiboleNaNa2(Mg4Fe3+)Si8O22(OH)24454201718379
Magnetite  (*)SpinelFe2+Fe3+2O44454201718314899
Mangano-ferri-eckermannite  (*)AmphiboleNaNa2(Mn2+4Fe3+)Si8O22(OH)2445420171834
Mangano-mangani-ungarettiite  (*)AmphiboleNaNa2(Mn2+2Mn3+3)Si8O22O2445420171833
Microcline  (*)FeldsparK(AlSi3O8)445420171834924
Namansilite  (*)NoneNaMn3+Si2O6445420171838
Norrishite  (*)MicaKLiMn3+2Si4O10O2445420171835
Oxo-mangani-leakeite  (*)AmphiboleNaNa2(Mn3+4Li)Si8O22O2420420171831
Pectolite  (*)PectoliteNaCa2Si3O8(OH)44542017183363
Pyrite  (*)PyriteFeS24454201718339462
Quartz  (*)QuartzSiO24454201718361156
Rhodochrosite  (*)CalciteMn(CO3)445420171831711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)44542017183969
Serandite  (*)PectoliteNaMn2+2Si3O8(OH)4454201718338
Spessartine  (*)GarnetMn2+3Al2(SiO4)3445420171831214
Sugilite  (*)MilariteKNa2Fe3+2(Li3Si12)O304454201718315
Tephroite  (*)OlivineMn2+2(SiO4)44542017183240
Witherite  (*)AragoniteBa(CO3)44542017183251



3 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
Alexandra-0098433427Middle Sillurian Age of metamorphism      86Hoskins Mine, Grenfell, Forbes Co., New South Wales, AustraliaHoskins MineAshley (1986)10.1080/08120098608729383AJES33_443 
Alexandra-0099445444Late Upper Ordovician Age of metamorphism      86Hoskins Mine, Grenfell, Forbes Co., New South Wales, AustraliaHoskins MineAshley (1986)10.1080/08120098608729383AJES33_443 
Grew_Li_2019_0080420420420      Oxo-mangani-leakeite 86Hoskins Mine, Grenfell, Forbes Co., New South Wales, AustraliaHoskins mine, Grenfell, Forbes County, New South Wales, AustraliaAshley (1986)10.1080/08120098608729383AJES33_456 


SampleSource LocalityReference URL
R050244Hoskins Mine, Grenfell, Forbes Co., New South Wales, Australiahttps://rruff.info/R050244
R070006Hoskins Mine, Grenfell, Forbes Co., New South Wales, Australiahttps://rruff.info/R070006
R060368Hoskins Mine, Grenfell, Forbes Co., New South Wales, Australiahttps://rruff.info/R060368


All locality data graciously provided by mindat.org

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