Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16SW00036

Record: MDI31D16SW00036

General

Mineral Record Identification
Record Name(s) South Laronde - 1910
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Jan-10
Date Last Modified 2022-Mar-04
Created By
Revised By

Commodities

Primary Commodities: Mica, Nepheline Syenite



Location

Township or Area: Glamorgan

Latitude: 44° 52' 35.44"    Longitude: -78° 18' 35.84"

UTM Zone: 17    Easting: 712472   Northing: 4972752.99    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16SW

Point Location Description: Property symbol 'T', 2.7 km southeast of Trooper Lake

Location Method: Data Compilation



Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Syenite 1 Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1BiotiteEconomicOre
2MuscoviteEconomicOre
3CorundumEconomicOre

Mineralization Comments

Jan 23, 2017 (C Papertzian) - Black mica (biotite) occurs in occasional patches or segregations in syenite. These are up to 2 ft in diameter, individual sheets of (broken) mica several inches across. Muscovite stringers are also present, and said to be associated with corundum.


Jan 23, 2017 (A Wilson) - Mica occurs as segregations or patches up to 0.6 m across. Individual mica sheets are several centimetres across.



Mineral Record Details

References

Publication - Geology of the Haliburton and Bancroft Areas; Geological Survey of Canada, Memoir no. 6

Publication Number: GSC Memoir 6 Scale:     Date: 1910

Author: Adams, F. D. and; Barlow, A. E.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100481


MonoMap - Industrial minerals of the Algonquin region

Publication Number: OFR5425 Scale:     Date: 1983

Author: Martin W.

Publisher Name: Ontario Geological Survey

Location:


Map - Precambrian Geology, Minden Area

Publication Number: P3415 Scale: 1:50,000    Date: 2001

Author: Easton R.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