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Ontario Geological Survey
Permanent Link to this Record:
MDI31L01SW00004
| Record Name(s) | Brent Property - 1953 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1991-Jan-27 |
| Date Last Modified | 2022-Apr-04 |
| Created By | |
| Revised By |
Primary Commodities: Mica
Township or Area: Deacon, Deacon
Latitude: 46° 3' .3" Longitude: -78° 26' 11.73"
UTM Zone: 17 Easting: 698308.999 Northing: 5102807 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31L01SW
Point Location Description: approximate
Location Method: AMIS Site Visit
Access Description: From the town of Brent access road to the town of Brent proceed east along the north shore of Cedar Lake for ~2.5km. Follow old fire tower access trail for 2.2km. Walk due east for 200m. Features are 30m above the northwest corner of an unnamed lake.
1953: North Bay Mica Company Limited - in operation. Circa 1993: stripping, prospecting by persons unknown
Province: Grenville
Subprovince: Central Gneiss Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Contains |
Dec 14, 2011 (A Wilson) - Two separate pegmatite bodies were mined. The deposit on Lot 12 Con 12 was reportedly hosted within a 15 foot block of pegmatite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Muscovite | Economic | Ore |
Dec 14, 2011 (A Wilson) - The two pegmatite bodies contained exceptionally well formed books of mica. The books were typically 5 to 6 inches in size. The muscovite at this site was green in colour.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1953 | 508 |
Mica |
Econ Geol 19, p. 86 | 560 tons of material yielded 1.5 tons of rough mica |
Publication - Mica Deposits of Canada; Geological Survey of Canada, Economic Geology Series 19
Publication Number: Econ Geol 19 Page: 86 Date: 1960
Author: Hoadley, J W
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102453
Mono - Pegmatite mineral resources of Ontario
Publication Number: IMR021 Page: 30 Date: 1997
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Mining operations in 1953
Publication Number: ARV63-02 Page: 113 Date: 1997
Author: Field D.J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 214 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office