Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16NW00061

Record: MDI31D16NW00061

General

Mineral Record Identification
Record Name(s) South 503 - 1918, P.J. Dwyer - 1918, Walsh Property - 1957
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Jan-10
Date Last Modified 2022-Sep-27
Created By
Revised By

Commodities

Primary Commodities: Feldspar (Nonmetals)



Location

Township or Area: Glamorgan

Latitude: 44° 54' 54.5"    Longitude: -78° 21' 29.6"

UTM Zone: 17    Easting: 708520   Northing: 4976919.01    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16NW

Point Location Description: Property symbol 'L', 2.5 km east-northeast of Gooderham.

Location Method: Data Compilation

Access Description: 5 chains north of the road.



Exploration History

1918; P.J. Dwyer reportedly shipped a carload of feldspar from this prospect Circa 1943 : stripping and trenching, 20 x 6 x 3-4 ft. deep, sunk on a dyke. '1965: a small mill was being erected for the concentration of feldspar, but work subsequently lapsed. 1957: Walsh – DD-2-80 ft.1974:Imperial Oil Ltd. – geological mapping.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
12 31D16NW0054 31D16NW0054
2.1533 31D16SW0047 31D16SW0047

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Granitic Contains
Syenite 2 Quartz Host

Lithology Comments

Jan 25, 2017 (A Wilson) - A large area has been stripped and trenched on a granite pegmatite and quartz syenite pegmatite body intrusive into a larger area of syenite along the southern boundary of the Glamorgan granite mass. In places the pegmatite is highly feldspathic (red microcline) with a very low quartz content but for the most part it contains green to black hornblende. The more hornblendic. parts tend to be plagioclase-rich. An inclusion of coarse-grained syenite within the pegmatite has a marginal concentration of hornblende




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1FeldsparEconomicOre
2FluoriteEconomicOre

Mineralization Comments

Jan 25, 2017 (A Wilson) - A pegmatite dyke (in biotite gneiss), 5 ft. wide in the trench but narrowing to 2 ft. in a 25 ft. stripping to the NE. Pink feldspar, some quartz, rarely a little fluorspar.



Mineral Record Details

Classification
RankClassification            
1 Industrial
Characteristics
Rank Characteristic            
1 Stratiform

References

Part - Mineral occurrences in the Haliburton area

Publication Number: ARV52-02 Page: 29  Date: 1998

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Feldspar in Ontario

Publication Number: IMR003 Page: 10  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 Algonquin region

Publication Number: OFR5425 Page: 67  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