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:
Desmont Mine (Homer Yellowknife Prospect), Monmouth Township, Haliburton Co., Ontario, Canada

Oldest recorded age at locality: 1050
Youngest recorded age at locality: 0

mindat Locality ID: 7786
mindat URL: http://www.mindat.org/loc-7786.html

Tectonic Settings:

Total number of sublocalities beneath "Desmont Mine (Homer Yellowknife Prospect), Monmouth Township, Haliburton Co., Ontario, Canada": 0
Total number of bottom-level sublocalities: 0

Latitude: 45°2'32"N
Longitude: 78°14'24"W
Decimal Degree (lat, lon): 45.042222222222,-78.24
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 B C Ca Ce F Fe H K Mg Mo Na O S Si Sr Th Ti U Zn 

Elements from minerals reported directly at this locality: Al B C Ca Ce F Fe H K Mg Mo Na O S Si Sr Th Ti U Zn 

Structural Groups for minerals in this locality: 
AmphiboleAncyliteBastnäsiteCalciteChevkiniteDiasporeFeldsparFluoriteGypsumHumite
MarcasiteMolybdeniteNickelineNonePyritePyroxeneQuartzSphaleriteSpinelSulphur
TitaniteTourmalineZircon

27 IMA Minerals at location:
Actinolite  (*)Albite  (*)Ancylite-(Ce)  (*)Calcite  (*)Chondrodite  (*)
Diopside  (*)Dravite  (*)Edenite  (*)Goethite  (*)Graphite  (*)
Gypsum  (*)Hydroxylbastnäsite-(Ce)  (*)Magnetite  (*)Marcasite  (*)Microcline  (*)
Molybdenite  (*)Perrierite-(Ce)  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Sphalerite  (*)Stillwellite-(Ce)  (*)Sulphur  (*)Thorianite  (*)Thorite  (*)
Titanite  (*)Uraninite  (*)
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)21050003419
Albite  (*)FeldsparNa(AlSi3O8)1050008803
Ancylite-(Ce)  (*)AncyliteCeSr(CO3)2(OH)·H2O10500092
Calcite  (*)CalciteCa(CO3)10500027770
Chondrodite  (*)HumiteMg5(SiO4)2F2105000285
Diopside  (*)PyroxeneCaMgSi2O61050004135
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)105000648
Edenite  (*)AmphiboleNaCa2Mg5(Si7Al)O22(OH)2105000160
Goethite  (*)DiasporeFeO(OH)1050007437
Graphite  (*)NoneC1050002812
Gypsum  (*)GypsumCa(SO4)·2H2O1050006890
Hydroxylbastnäsite-(Ce)  (*)BastnäsiteCe(CO3)(OH)10500016
Magnetite  (*)SpinelFe2+Fe3+2O410500014899
Marcasite  (*)MarcasiteFeS21050005674
Microcline  (*)FeldsparK(AlSi3O8)1050004924
Molybdenite  (*)MolybdeniteMoS21050005800
Perrierite-(Ce)  (*)ChevkiniteCe4MgFe3+2Ti2O8(Si2O7)210500046
Pyrite  (*)PyriteFeS210500039462
Pyrrhotite  (*)NickelineFe7S81050009056
Quartz  (*)QuartzSiO210500061156
Sphalerite  (*)SphaleriteZnS10500021482
Stillwellite-(Ce)  (*)NoneCeBSiO510500019
Sulphur  (*)SulphurS1050002045
Thorianite  (*)FluoriteThO2105000236
Thorite  (*)ZirconTh(SiO4)1050001006
Titanite  (*)TitaniteCaTi(SiO4)O1050004899
Uraninite  (*)FluoriteUO21050002718


Locality Notes from all Ages at Locality:
Age IDLocality Notes
GSAB66_1131-001a granite near Tory Hill and Monmouth Township, Ontario
Michelle_556Near-surface occurrence. Recently forming oxalate associated with lichen and calcite, in Ontario.


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
Michelle_55600Recent Age of weddellite mineralizationhigh   YesWeddellite 14550Haliburton Co., Ontario, CanadaHaliburton CountyMandarino (1983) CM21_509 
GSAB66_1131-001105010501050U-Pb zircon  YesZircon  27508Tory Hill Area, Haliburton Co., Ontario, CanadaTory HillTilton et al (1955) GSAB66_1131 

SampleSource LocalityReference URL

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