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Croft Mine, Cardiff Township, Highlands East Township, Haliburton County, Ontario, Canadai
Regional Level Types
Croft MineMine
Cardiff TownshipTownship
Highlands East TownshipTownship
Haliburton CountyCounty
OntarioProvince
CanadaCountry

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Latitude & Longitude (WGS84):
45° 1' 59'' North , 78° 1' 48'' West
Latitude & Longitude (decimal):
45.03333,-78.03000
GeoHash:
G#: f2080qh61
GRN:
N31W40
Type:
Mine
KΓΆppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Bancroft3,838 (2008)13.8km
Haliburton Village1,149 (2019)38.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Bancroft Gem and Mineral Club and MuseumBancroft, Ontario14km
Mindat Locality ID:
21868
Long-form identifier:
mindat:1:2:21868:4
GUID (UUID V4):
893e0e8c-2578-4b15-9145-6e06bd5b169f


In biotite-granite pegmatite cutting gneiss and amphibolite.

"The deposit was explored for uranium mineralization from 1953 to 1955 by Croft Uranium Mines Limited. Development consists of an adit and several trenches."

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

β“˜ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ 'Chlorite Group'
β“˜ 'Clinopyroxene Subgroup'
β“˜ Corundum
Formula: Al2O3
β“˜ Fluorapatite
Formula: Ca5(PO4)3F
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Graphite
Formula: C
β“˜ Molybdenite
Formula: MoS2
β“˜ Monazite-(Ce)
Formula: Ce(PO4)
β“˜ Pyrite
Formula: FeS2
β“˜ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
β“˜ 'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
β“˜ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'
Formula: (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Smoky Quartz
Formula: SiO2
β“˜ Sillimanite
Formula: Al2(SiO4)O
β“˜ Sulphur
Formula: S8
β“˜ Thorite
Formula: Th(SiO4)
β“˜ Thorite var. Uranothorite
Formula: (Th,U)SiO4
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
β“˜ Uraninite
Formula: UO2
β“˜ Zircon
Formula: Zr(SiO4)
β“˜ Zircon var. Cyrtolite
Formula: Zr[(SiO4),(OH)4]

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Graphite1.CB.05aC
β“˜Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
β“˜Corundum4.CB.05Al2O3
β“˜Quartz4.DA.05SiO2
β“˜var. Smoky Quartz4.DA.05SiO2
β“˜Uraninite4.DL.05UO2
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Monazite-(Ce)8.AD.50Ce(PO4)
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
β“˜Thorite9.AD.30Th(SiO4)
β“˜var. Uranothorite9.AD.30(Th,U)SiO4
β“˜Zircon
var. Cyrtolite		9.AD.30Zr[(SiO4),(OH)4]
β“˜9.AD.30Zr(SiO4)
β“˜Sillimanite9.AF.05Al2(SiO4)O
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Allanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Unclassified
β“˜'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
β“˜'Pyrochlore Supergroup
var. Betafite (of Hogarth 1977)'		-(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
β“˜'Chlorite Group'-
β“˜'Clinopyroxene Subgroup'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n

List of minerals for each chemical element

HHydrogen
Hβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Hβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
BBoron
Bβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cβ“˜ GraphiteC
OOxygen
Oβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CorundumAl2O3
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ Monazite-(Ce)Ce(PO4)
Oβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Oβ“˜ QuartzSiO2
Oβ“˜ SillimaniteAl2(SiO4)O
Oβ“˜ Quartz var. Smoky QuartzSiO2
Oβ“˜ ThoriteTh(SiO4)
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oβ“˜ UraniniteUO2
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Oβ“˜ Thorite var. Uranothorite(Th,U)SiO4
Oβ“˜ Garnet GroupX3Z2(SiO4)3
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluorapatiteCa5(PO4)3F
NaSodium
Naβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ CorundumAl2O3
Alβ“˜ SillimaniteAl2(SiO4)O
SiSilicon
Siβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ QuartzSiO2
Siβ“˜ SillimaniteAl2(SiO4)O
Siβ“˜ Quartz var. Smoky QuartzSiO2
Siβ“˜ ThoriteTh(SiO4)
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
Siβ“˜ Thorite var. Uranothorite(Th,U)SiO4
Siβ“˜ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pβ“˜ FluorapatiteCa5(PO4)3F
Pβ“˜ Monazite-(Ce)Ce(PO4)
SSulfur
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
Sβ“˜ SulphurS8
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CaCalcium
Caβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ TitaniteCaTi(SiO4)O
TiTitanium
Tiβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ TitaniteCaTi(SiO4)O
FeIron
Feβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ PyriteFeS2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
Zrβ“˜ Zircon var. CyrtoliteZr[(SiO4),(OH)4]
NbNiobium
Nbβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Nbβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
CeCerium
Ceβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ceβ“˜ Monazite-(Ce)Ce(PO4)
TaTantalum
Taβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
ThThorium
Thβ“˜ ThoriteTh(SiO4)
Thβ“˜ Thorite var. Uranothorite(Th,U)SiO4
UUranium
Uβ“˜ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Uβ“˜ UraniniteUO2
Uβ“˜ Thorite var. Uranothorite(Th,U)SiO4

Other Regions, Features and Areas containing this locality

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This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

www.geologyontario.mndm.gov.on.ca (n.d.) http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31E01SE00224.html
Gordon J.B., Rybak U.C., and Robertson J. A. (1981) Uranium and Thorium Deposits of Southern Ontario, Ontario Geological Survey, Open File Report 5311, p.82-84.
Sabina, A.P. (1986) Rocks and Minerals for the Collector: Bancroft – Parry Sound Area and Southern Ontario. Geological Society of Canada Miscellaneous Report 39. 182 pages.
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