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:
Ann-Mason Deposit (Ludwig; Douglas Hill; Cast; Blue Hills; McConnell; Minnesota; Shamrock), Yerington District, Singatse Range, Lyon Co., Nevada, USA

Oldest recorded age at locality: 169
Youngest recorded age at locality: 169

mindat Locality ID: 194553
mindat URL: http://www.mindat.org/loc-194553.html

Tectonic Settings:

Total number of sublocalities beneath "Ann-Mason Deposit (Ludwig; Douglas Hill; Cast; Blue Hills; McConnell; Minnesota; Shamrock), Yerington District, Singatse Range, Lyon Co., Nevada, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°57'36"N
Longitude: 119°16'11"W
Decimal Degree (lat, lon): 38.96,-119.26972222222
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 Cu F Fe H K Mg Mo Na O S Si Ti Zr 

Elements from minerals reported directly at this locality: Al Ba C Ca Cu F Fe H K Mg Mo Na O S Si Ti Zr 

Structural Groups for minerals in this locality: 
AllophaneAluniteAmphiboleBaryteCalciteChalcopyriteClayClinozoisiteCorundumDiaspore
EpidoteFeldsparGypsumHumiteMalachiteMicaMolybdeniteNonePyritePyrophyllite
QuartzRutileSpinelTitaniteZircon

28 IMA Minerals at location:
Actinolite  (*)Albite  (*)Baryte  (*)Bornite  (*)Calcite  (*)
Chalcocite  (*)Chalcopyrite  (*)Chondrodite  (*)Chrysocolla  (*)Dolomite  (*)
Epidote  (*)Goethite  (*)Gypsum  (*)Hematite  (*)Ilmenite  (*)
Jarosite  (*)Magnesio-hornblende  (*)Magnetite  (*)Malachite  (*)Molybdenite  (*)
Muscovite  (*)Pyrite  (*)Pyrophyllite  (*)Quartz  (*)Rutile  (*)
Titanite  (*)Tremolite  (*)Zircon  (*)
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)216916903419
Albite  (*)FeldsparNa(AlSi3O8)16916908803
Baryte  (*)BaryteBa(SO4)169169011547
Bornite  (*)NoneCu5FeS416916905516
Calcite  (*)CalciteCa(CO3)169169027770
Chalcocite  (*)NoneCu2S16916905707
Chalcopyrite  (*)ChalcopyriteCuFeS2169169027198
Chondrodite  (*)HumiteMg5(SiO4)2F21691690285
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O16916903531
Dolomite  (*)NoneCaMg(CO3)216916909895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)16916908173
Goethite  (*)DiasporeFeO(OH)16916907437
Gypsum  (*)GypsumCa(SO4)·2H2O16916906890
Hematite  (*)CorundumFe2O3169169014640
Ilmenite  (*)CorundumFe2+Ti4+O316916905433
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)616916902228
Magnesio-hornblende  (*)Amphibole   Ca2(Mg4Al)(Si7Al)O22(OH)21691690238
Magnetite  (*)SpinelFe2+Fe3+2O4169169014899
Malachite  (*)MalachiteCu2(CO3)(OH)2169169012537
Molybdenite  (*)MolybdeniteMoS216916905800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2169169017380
Pyrite  (*)PyriteFeS2169169039462
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)21691690771
Quartz  (*)QuartzSiO2169169061156
Rutile  (*)RutileTiO216916905614
Titanite  (*)TitaniteCaTi(SiO4)O16916904899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)216916902562
Zircon  (*)ZirconZr(SiO4)16916905251


1 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
PorphCu-00224169169169      Actinolite, Albite, Bornite, Chalcopyrite, Epidote, Hematite, Magnetite, Molybdenite, Pyrite, RutileCu194553Ann-Mason Deposit (Ludwig; Douglas Hill; Cast; Blue Hills; McConnell; Minnesota; Shamrock), Yerington District, Singatse Range, Lyon Co., Nevada, USAAnn MasonSinger et al. (2008) USGSOFR2008_1155 

SampleSource LocalityReference URL

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