In syenite or granitic pegmatite cutting biotite gneiss and garnet-biotite gneiss. The pegmatite is composed of peristerite, microcline, quartz, and abundant pyroxene. Fractures are filled with veinlets containing fluorite, calcite, and pyrite.

"The deposit was discovered by E.T. Hogan and was explored for uranium mineralization by Stratmat Limited in 1953 and by Halo Uranium Mines Limited in 1955-56. Underground development consists of two adits and a shaft sunk from one of the adits. The deposit is located on the northwest side of Hall Lake; No. 1 adit is near the shore of the lake and No. 2 adit is 300 m northwest of it. The property is held by Rare Earth Resources Limited."

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

10 valid minerals.

Detailed Mineral List:

ⓘ 'Amphibole Supergroup'

Formula: AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65, Pt.6, p.12.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65, Pt.6, p.12.

ⓘ Calcite

Formula: CaCO₃

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Chlorite Group'

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Feldspar Group'

References:

Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65, Pt.6, p.12.

ⓘ Fluorite

Formula: CaF₂

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65, Pt.6, p.12.

ⓘ Molybdenite

Formula: MoS₂

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Pyrite

Formula: FeS₂

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Pyrochlore Supergroup'

Formula: A_2-mD₂X_6-wZ_1-n

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'

Formula: (Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Thorite

Formula: Th(SiO₄)

Colour: black and amber

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Thorite var. Thorogummite

Formula: (Th,U)(SiO₄)_1-x(OH)_4x

Habit: earthy

Colour: greyish-white

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Thorite var. Uranothorite

Formula: (Th,U)SiO₄

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Uraninite

Formula: UO₂

Habit: small cubes and grains

Description: Associated with black and amber thorite, thorogummite, and zircon in pyroxene rich zones.

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Ref.: Geological Survey of Canada Miscellaneous Report 39.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Uraninite	4.DL.05	UO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 9 - Silicates
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	var. Uranothorite	9.AD.30	(Th,U)SiO₄
ⓘ	var. Thorogummite	9.AD.30	(Th,U)(SiO₄)_1-x(OH)_4x
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
Unclassified
ⓘ	'Pyrochlore Supergroup'	-	A_2-mD₂X_6-wZ_1-n
ⓘ	'Pyroxene Group'	-	ADSi₂O₆
ⓘ	'Hornblende Root Name Group'	-	◻Ca₂(Z²⁺₄Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
ⓘ	'Amphibole Supergroup'	-	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'	-	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
ⓘ	'Feldspar Group'	-
ⓘ	'Chlorite Group'	-
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
H	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
H	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
B	Boron
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Uraninite	UO₂
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Thorite var. Uranothorite	(Th,U)SiO₄
O	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
O	ⓘ Pyroxene Group	ADSi₂O₆
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorite	CaF₂
F	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	Aluminium
Al	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Si	Silicon
Si	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Thorite var. Uranothorite	(Th,U)SiO₄
Si	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Si	ⓘ Pyroxene Group	ADSi₂O₆
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Molybdenite	MoS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
Cl	Chlorine
Cl	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Cl	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ca	Calcium
Ca	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Hornblende Root Name Group	◻Ca₂(Z₄²⁺Z³⁺)(AlSi₇O₂₂)(OH,F,Cl)₂
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Amphibole Supergroup	AB₂C₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Ti	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Nb	Niobium
Nb	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Ta	Tantalum
Ta	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)
Th	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
Th	ⓘ Thorite var. Uranothorite	(Th,U)SiO₄
U	Uranium
U	ⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)	(Ca,Na,U)₂(Ti, Nb,Ta)₂O₆Z(OH)
U	ⓘ Thorite var. Thorogummite	(Th,U)(SiO₄)_1-x(OH)_4x
U	ⓘ Uraninite	UO₂
U	ⓘ Thorite var. Uranothorite	(Th,U)SiO₄

Other Regions, Features and Areas containing this locality

Canada

Ontario
- Bancroft areaMineral Occurrence Area

North America PlateTectonic Plate

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References

www.geologyontario.mndm.gov.on.ca (n.d.) http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31E01SE00221.html

www.geologyontario.mndm.gov.on.ca (n.d.) http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31E01SE00220.html

Satterly, J. (1956) Radioactive Mineral Occurrences in the Bancroft Area, Ontario Department of Mines, Annual Report ARV65: (6): 12.

Sabina, A.P. (1986) Rocks and Minerals for the Collector: Bancroft – Parry Sound Area and Southern Ontario. Geological Society of Canada Miscellaneous Report 39: 68.

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