Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F04NW00007

Record: MDI31F04NW00007

General

Mineral Record Identification
Record Name(s) Thompson Feldspar - 1922, R. Thompson Property - 1922, Thompson Mine - 1932
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1986-May-20
Date Last Modified 2022-Apr-19
Created By
Revised By

Commodities

Primary Commodities: Feldspar (Nonmetals), Silica

Secondary Commodities: Rare Earth Elements, Cerium



Location

Township or Area: Monteagle

Latitude: 45° 10' 29.95"    Longitude: -77° 46' 53.99"

UTM Zone: 18    Easting: 281431.002   Northing: 5006153.996    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31F04NW

Point Location Description: trench

Location Method: AMIS Site Visit

Access Description: North on Musclow-Greenview road to Kuno farm on left. Open cut 30m north of farm house.



Exploration History

1922-27:Feldspar Mines Corporation - in production


Geology

Province: Grenville

Subprovince: Central Gneiss Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Host
Gneiss-Unsubdivided 2 Contains
Syenite 3 Intrudes

Lithology Comments

Feb 24, 2012 (A Wilson) - The pegmatite strikes N60E and dips 75N and can be traced for over 500 feet. The dike ranges from 20-25 feet in width, but the contacts are irregular, with numerous offshoots.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1MicroclineEconomicOre
2AllaniteEconomicOre
3PyroxeneEconomicOre
4HornblendeEconomicOre
5ChloriteEconomicOre
6EpidoteEconomicOre
7TitaniteEconomicOre
8HematiteEconomicOre

Mineralization Comments

Feb 24, 2012 (A Wilson) - The dike is poorly zoned with a core of quartz, an intermediate zone of pink potassium feldspar, white plagioclase and quartz; and a wall zone of graphic granite.



Mineral Record Details

Classification
RankClassification            
1 Pegmatite
Production Data
Year Tonnes Commodities Reference Comment
1923 2463 ARV63-06, p.39 total production 1923-1925, 1927; 2751 tons produced

References

Publication - Feldspar, Canada Mines Branch Publication 731

Publication Number: CMB Pub 731 Page: 45  Date: 1932

Author: Spence, H. S.

Publisher Name: Canada Mines Branch

Location: https://doi.org/10.4095/307887


Part - Mineral occurrences in the north Hastings area

Publication Number: ARV52-03 Page: 26  Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Geology of Monteagle and Carlow townships

Publication Number: ARV63-06 Page: 39, 43  Date: 1998

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Pegmatite mineral resources of Ontario

Publication Number: IMR021 Page: 20  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2

Publication Number: MDC022 Page: 122-123, 144-146  Date: 1981

Author: Storey C.C., Vos M.A.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Radioactive mineral deposits of the Pembroke-Renfrew area

Publication Number: MDC023 Page: 141  Date: 1981

Author: Masson S.L., Gordon J.B.

Publisher Name: Ontario Geological Survey

Location:


Mono - Uranium and thorium deposits of southern Ontario

Publication Number: OFR5311 Page: 294  Date: 1981

Author: Gordon J.B., Rybak U.C., Robertson J.A.

Publisher Name: Ontario Geological Survey

Location:


MonoMap - Industrial minerals of the Algonquin region

Publication Number: OFR5425 Page: 76  Date: 1983

Author: Martin W.

Publisher Name: Ontario Geological Survey

Location:


Mono - Granitic pegmatites of the Bancroft area, southeastern Ontario

Publication Number: OFR5717 Page: 101-102  Date: 1990

Author: Goad B.E.

Publisher Name: Ontario Geological Survey

Location:


Map - Monteagle and Carlow townships, County of Hastings, Ontario

Publication Number: M1954-03 Scale: 1:31,680    Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Precambrian Geology, Bancroft Area

Publication Number: P3385 Scale: 1:50,000    Date: 1998

Author: Lumbers S.B., Vertolli V.M.

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