Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31L07SW00008

Record: MDI31L07SW00008

General

Mineral Record Identification
Record Name(s) Croteau Claim - 1942, Inspiration Mining and Development Company - 1942
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1982-Mar-09
Date Last Modified 2022-Feb-18
Created By
Revised By

Commodities

Primary Commodities: Mica



Location

Township or Area: Mattawan, Olrig

Latitude: 46° 19' 47.88"    Longitude: -78° 55' 52.39"

UTM Zone: 17    Easting: 659234   Northing: 5132790.01    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 31L07SW

Point Location Description: adit

Location Method: AMIS Site Visit

Access Description: Drive 31.1km northwest of Mattawa on highway 533. Turn south after crossing Snake Creek. Drive 8 km to site on west side of hill, 250m north of campsite and 180m north of beaver pond. Road goes to site.



Exploration History

1942: Croteau brothers – staking. 1942: Inspiration Mining and Development Company Ltd. – property acquisition, production.


Geology

Province: Grenville

Subprovince: Central Gneiss Belt

Terrane: Tomiko

Geological Age: Mesoproterozoic  



Lithology

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

Lithology Comments

Jul 06, 2012 (A Wilson) - The gneiss is cut by pegmatite dikes. Muscovite was produced from two northeast-trending pegmatite dikes.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1MuscoviteEconomicOre

Mineralization Comments

Jul 06, 2012 (A Wilson) - Muscovite was produced from two separate pits on the property. Some of the books of muscovite found in the easternmost pit were as much as 1 foot in diameter. Much of this muscovite was creased, wavy and of poor grade. The muscovite found in the westernmost pit was of similar quality to that described from the eastern pit.



Mineral Record Details

Classification
RankClassification            
1 Pegmatite
Characteristics
Rank Characteristic            
1 Intrusive
Production Data
Year Tonnes Commodities Reference Comment
1942 45 ARV53-6 p. 42 Total feldspar recovered was approximately 50 tons.

References

Part - Geology of the Mattawan-Olrig area

Publication Number: ARV53-06.001 Scale:     Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Mattawan-Olrig area, District of Nipissing, Ontario

Publication Number: ARM53D Scale: 1:63,360    Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Precambrian Geology, Songris Area

Publication Number: P2847 Scale: 1:50,000    Date: 2006

Author: Easton R.M.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Geology and Mineral Potential of the Eastern Tomiko Terrane, Grenville Province

Publication Number: OFR5554 Scale:     Date: 2006

Author: Easton R.M.

Publisher Name: Ontario Geological Survey

Location:


Map - Geological series, Mattawa-Deep River area (western half), District of Nipissing

Publication Number: P1196 Scale: 1:63,360    Date: 1976

Author: Lumbers S.B.

Publisher Name: Ontario Division of Mines

Location:


Mono - Report on the Eau Claire mica properties, Mattawan Township

Publication Number: PR1942-01 Scale:     Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


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