Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001865

Record: MDI000000001865

General

Mineral Record Identification
Record Name(s) General Electric Company - 1905
Related Record Type
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1983-Mar-22
Date Last Modified 2022-Jun-29
Created By
Revised By

Commodities

Primary Commodities: Mica



Location

Township or Area: South Sherbrooke

Latitude: 44° 46' 53.11"    Longitude: -76° 30' 40.01"

UTM Zone: 18    Easting: 380449   Northing: 4959780    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C15SE

Point Location Description: pit adjacent to railway tracks north of Davern Lake

Location Method: AMIS Site Visit

Access Description: North of CPR lines and west south-west of Feldspar Station.



Exploration History

1905: General Electric Company – mine in production


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Frontenac

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Marble 1 Calcitic Host
Gneiss-Unsubdivided 2 Garnetiferous Adjacent
Pyroxenite 3 Pyroxenite Adjacent

Lithology Comments

Sep 18, 2015 (A Wilson) - The deposit is located at the contact between medium-grained garnetiferous gneiss and medium to coarse grained granoblasitc calcite marble. The mica is associated with leads of pink calcite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PhlogopiteEconomicOre
2CalciteEconomicGangue

Mineralization Comments

Sep 18, 2015 (A Wilson) - A fissure lead of mica with pink calcite cuts green pyroxenite. The lead at the bottom of the main pit is 3.5 feet wide. The lead strikes N20ºW and dips 80ºE. The mica is inclined to ribbon-structure and is impaired by layers of calcite between the laminae..



Mineral Record Details

Classification
RankClassification            
1 Vein
Characteristics
Rank Characteristic            
1 Vein

References

Publication - Mineral Occurrences of Lanark (unpublished)

Publication Number: Page: 169  Date: 1944

Author: Satterly, J.

Publisher Name: Ontario Department of Mines

Location: Tweed RGP


Mono - Phlogopite mica in Ontario

Publication Number: MDC008 Page: 78  Date: 1968

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geological notes for maps nos. 2053 and 2054, Madoc-Gananoque area

Publication Number: S012 Page: 25  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Gananoque area, Ontario

Publication Number: M2054 Scale: 1:126,720    Date: 1998

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Publication - Mica; Canada Mines Branch, Publication 701

Publication Number: CMB Pub 701 Page: 72  Date: 1929

Author: Spence, H.S.

Publisher Name: Canadian Dept. of Mines, Mines Branch

Location:


Publication - Mica, its occurrence, exploitation and uses; Canada Mines Branch, Publication no. 118

Publication Number: CMB Pub 118 Page: 185  Date: 1912

Author: de Schmid, H. S.

Publisher Name: Canada Mines Branch

Location: https://doi.org/10.4095/297232


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