Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31E01SE00158

Record: MDI31E01SE00158

General

Mineral Record Identification
Record Name(s) Harcourt Nepheline Syenite - 2001
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1993-Mar-25
Date Last Modified 2022-Apr-04
Created By
Revised By

Commodities

Primary Commodities: Nepheline Syenite



Location

Township or Area: Harcourt

Latitude: 45° 5' 4.27"    Longitude: -78° 9' 22.01"

UTM Zone: 17    Easting: 723811.801   Northing: 4996274.577    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31E01SE

Point Location Description: Point at Harcourt.

Location Method: Conversion from MDI

Access Description: Exposed in a railway cut, near the township boundary, a few hundred yards W of Mumford Station.



Geology

Province: Grenville

Geological Age: Mesoproterozoic  



Geology Comments

Dec 07, 2005 (C Papertzian) - A banded nepheline-syenite (nepheline-hornblende gneiss) in contact with marble. Bands vary from those containing pure nepheline to those rich in Fe-Mg minerals. Calcitic inclusions occur within the nepheline syenite. No skarn minerals.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5NephelineEconomicOre

Mineral Record Details

References

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

Publication Number: GSC Mem 6 Page: 288  Date: 1910

Author: Adams, F D; Barlow, A E

Publisher Name: Geological Survey of Canada

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


Part - Nepheline syenite deposits of southern Ontario

Publication Number: ARV69-08 Page: 57  Date: 1997

Author: Hewitt D.F., Armstrong H.S., Tilley C.E.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Industrial minerals of the Algonquin region

Publication Number: OFR5425 Page: 235  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