Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16NW00065

Record: MDI31D16NW00065

General

Mineral Record Identification
Record Name(s) Bear Lake Mine - 1918, Tory Hill Marble and Mica Company - 1918, Gibson Road Western Occurrence - 1986
Related Record Type Simple
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1991-Jan-10
Date Last Modified 2022-Sep-27
Created By
Revised By

Commodities

Primary Commodities: Mica



Location

Township or Area: Glamorgan, Glamorgan

Latitude: 44° 58' 47.9"    Longitude: -78° 22' 41.39"

UTM Zone: 17    Easting: 706713   Northing: 4984070    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16NW

Point Location Description: Just north of Little Glamor Lake.

Location Method: Data Compilation



Exploration History

1918-25 : Tory Hill Marble and Mica Co Ltd shipped 3,396.5 pounds of thumb-trimmed amber mica from these lots. The old workings could not be located in 1943 but local residents said that the shipments were from several deposit and a pit is described on this lot. Whether mica or molybdenite was produced from it is questionable - this pit was shallow and 15 x 25 ft., situated between a disused farmhouse and a barn, 12 chains north of Little Bear (Glamor) Lake (1943).


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Geology Comments

Dec 07, 2005 (C Papertzian) - Amber mica.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Gneiss-Unsubdivided 1 Host
Pegmatite 2 Contains

Lithology Comments

Jan 25, 2017 (A Wilson) - A shallow pit, 15 by 25 feet, 10 chains north of Little Bear Lake (Little Glamor Lake) exposes rusty quartzitic gneiss and a pegmatite containing pyrite and pyrrhotite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
2PhlogopiteEconomicOre
3ApatiteEconomicOre
4TitaniteEconomicOre
1AmphiboleEconomicGangue

Mineralization Comments

Jan 25, 2017 (A Wilson) - This locality is known for its large crystals. Black amphibole occurs as large crystals and crystal groups in buff to pink coarsely crystalline calcite. Large crystals of biotite about 30 cm in diameter, and light green apatite crystals measuring up to 30 cm long occur with the amphibole. Titanite crystals measuring up to 20 cm long occur in calcite and in the granitic rocks. The calcite fluoresces bright pink in "short" ultraviolet light.



Mineral Record Details

References

Part - Mineral occurrences in the Haliburton area

Publication Number: ARV52-02 Page: 56  Date: 1998

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Phlogopite mica in Ontario

Publication Number: MDC008 Page: 48  Date: 1968

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Industrial minerals of the Algonquin region

Publication Number: OFR5425 Page: 216  Date: 1983

Author: Martin W.

Publisher Name: Ontario Geological Survey

Location:


Publication - Rocks and minerals for the collector: Bancroft - Parry Sound area and southern Ontario; Geological Survey of Canada, Miscellaneous Report 39

Publication Number: Misc Rep 39 Page: 91-92  Date: 1986

Author: Sabina, A.P.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/121046


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office