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Silver Crater Mine (Basin Property), Faraday Township, Hastings Co., Ontario, Canada

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Latitude & Longitude (WGS84): 45° 1' 45'' North , 78° 0' 38'' West
Latitude & Longitude (decimal): 45.02917,-78.01083
GeoHash:G#: f2080v61z
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate


Probably a carbonatite intrusion into biotite-amphibolites and syenitized gneisses. Famous for its betafite crystals.
"Silver Crater Mines, Limited, was incorporated in February 1951, with an
authorized capitalization of 3,000,000 shares of ftl par value, of which 2,543,215 have been issued. The head office is at 696 Yonge Street, Toronto. The mine address is Cobalt.
The company owns the Silver Banner and Ophir properties and has a lease
on the Mensilvo property, all in Coleman township, district of Timiskaming.
It also holds claims in Faraday Township, Hastings County.
The Basin property of Silver Crater Mines, Limited, comprises lot 31, concession XV, Faraday Township, Hastings County. The property was acquired in 1953. It is about 8 miles west of Bancroft and is accessible from the Monck road by a truck road 2 miles long. Silver Crater Mines, Limited, is a wholly-owned subsidiary of International Cobalt and Silver Mining Company, Limited.
In 1953-55 the company carried out exploration on a carbonate body containing crystals of betafite, a multiple oxide of niobium, titanium, and uranium.
Although the occurrence is very similar to pyrochlore-bearing carbonate bodies of igneous origin, the Silver Crater body is believed to be hydrothermal.
In 1925 the north end of the carbonate body was worked for black mica by
S. Orser and D. J. Wilson, and from 1947 to 1949 the property was operated by Bancroft Mica and Stone Products Mining Syndicate, Limited, producing scrap and trimmed mica. This production all came from an open-pit, which, in 1949, was 30 feet in diameter with a 65-foot wall against the slope of the hill, and a 12-foot wall on the outer side.
Silver Crater Mines, Limited, commenced operations in 1953 and explored the radioactive part of the carbonate body to the south of the old mica pit by a number of trenches and six shallow, X-ray drill-holes. The work was continued in 1954 by bulldozing overburden and weathered rock from the top of the carbonate body and by diamond-drilling. By the end of 1954, 14 inclined holes and 9 vertical holes, totalling 4,274 feet, had been drilled.
Drilling was continued in 1955, 11 vertical holes being completed for a total footage of 1,339 feet. The carbonate body was also explored by an adit, the underground development amounting to 435 feet of drifting and crosscutting and 94 feet of raising. The property was inactive in the latter half of 1955.
The property lies in a zone, about 3/4 mile wide, between a large area of
granite and hybrid granite gneiss to the north and an area of marble and associated metasediments to the south. This zone consists mainly of syenite, and syenite gneiss, to a lesser extent nepheline gneiss, and contains small areas of hornblende-plagioclase gneiss." (ARV65)

Regions containing this locality

Bancroft area (Bancroft district), Ontario, Canada

Area - 277 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982): Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13: 197-203; Ontario MDI Number: MDI31E01SE00054
'Apatite'
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31E01SE00054.html
'Biotite'
Reference: Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982): Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13: 197-203; Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054
Calcite
Formula: CaCO3
Reference: Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054
Diopside
Formula: CaMgSi2O6
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31E01SE00054.html
Euxenite-(Y)
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Reference: No reference listed
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Van King; Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054
Fluorite
Formula: CaF2
Reference: Ontario MDI Number: MDI31E01SE00054
'Hornblende'
Description: large crystals up to 3.3 m
Reference: Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982): Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13: 197-203
'Lepidomelane'
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31E01SE00054.html
Magnesio-hornblende
Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Reference: Jan H.Bernard and Jaroslav Hyrsl,2004, Minerals and their Localities, pg #368; Ontario MDI Number: MDI31E01SE00054
Magnetite
Formula: Fe2+Fe3+2O4
Reference: No reference listed
Molybdenite
Formula: MoS2
Reference: Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982): Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13: 197-203; Ontario MDI Number: MDI31E01SE00054
Pyrite
Formula: FeS2
Reference: No reference listed
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Habit: Cubo-octahedral
Colour: Brown
Fluorescence: none
Reference: [MinRec 10:153-155, 13:73, 13:76, 13:201]; Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)'
Formula: A2-mD2X6-wZ1+w
Habit: Cubo-octahedral
Colour: Brown
Fluorescence: none
Reference: [MinRec 10:153-155, 13:73, 13:76, 13:201]; Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054
Pyrrhotite
Formula: Fe7S8
Reference: Ontario MDI Number: MDI31E01SE00054
'Scapolite'
Reference: http://www.geologyontario.mndm.gov.on.ca/mndmfiles/MDI/data/records/MDI31E01SE00054.html
Titanite
Formula: CaTi(SiO4)O
Reference: Ontario MDI Number: MDI31E01SE00054
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: No reference listed
Zircon
Formula: Zr(SiO4)
Reference: Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982): Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13: 197-203; Joyce, D. K. (2006) Calcite Vein-Dikes of the Grenville Geological Province, Ontario, Canada. Rocks and Minerals 81:34-42; Ontario MDI Number: MDI31E01SE00054

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Molybdenite'2.EA.30MoS2
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Euxenite-(Y)'4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
'Magnetite'4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
'Fluorapatite'8.BN.05Ca5(PO4)3F
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Diopside'9.DA.15CaMgSi2O6
'Magnesio-hornblende'9.DE.10☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
'Titanite'9.AG.15CaTi(SiO4)O
'Zircon'9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Hornblende'-
'Lepidomelane'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)'-A2-mD2X6-wZ1+w
'Scapolite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)'
8.2.3.1A2-mD2X6-wZ1+w
AB2O6
Euxenite-(Y)8.3.8.2(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Hornblende'-
'Lepidomelane'-
Magnesio-hornblende-☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'Scapolite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
OOxygen
O AlbiteNa(AlSi3O8)
O CalciteCaCO3
O DiopsideCaMgSi2O6
O Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
O FluorapatiteCa5(PO4)3F
O Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
O MagnetiteFe2+Fe23+O4
O TitaniteCaTi(SiO4)O
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
FFluorine
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si DiopsideCaMgSi2O6
Si Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Si TitaniteCaTi(SiO4)O
Si ZirconZr(SiO4)
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S MolybdeniteMoS2
S PyriteFeS2
S PyrrhotiteFe7S8
CaCalcium
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ti TitaniteCaTi(SiO4)O
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
YYttrium
Y Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
MoMolybdenum
Mo MolybdeniteMoS2
CeCerium
Ce Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
TaTantalum
Ta Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ThThorium
Th Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
U Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Neoproterozoic - Mesoproterozoic
541 - 1600 Ma



ID: 617254
Grenville Supergroup and Flinton Group

Age: Proterozoic (541 - 1600 Ma)

Stratigraphic Name: Flinton Group

Comments: Grenville Province Central Metasedimentary Belt

Lithology: Marble, calc-silicate rocks, skarn, tectonic breccias

Reference: Ontario Geological Survey. 1:250 000 scale bedrock geology of Ontario. ISBN 978-1-4435-5705-4. Miscellaneous Release–Data 126 - Revision 1. [1]

Calymmian
1400 - 1600 Ma



ID: 3184637
Mesoproterozoic crystalline metamorphic rocks

Age: Calymmian (1400 - 1600 Ma)

Lithology: Crystalline metamorphic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65, Pt.6, p.123-132.
Hewitt, D.F. (1967) Uranium and Thorium Deposits of Southern Ontario, Ontario Department of Mines, Mineral Deposit Circular 4, p.35.
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.227-228.
Steacy, H.R., Rose, E. R., Moyd, L. & Hogarth, D.D. (1982) Some classic Mineral Localities of Southeastern Ontario. Mineralogical Record 13, 197-203.

External Links



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