Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C16SE00014

Record: MDI31C16SE00014

General

Mineral Record Identification
Record Name(s) Heffron Mine - 1880
Related Record Type Simple
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1982-Apr-27
Date Last Modified 2022-Apr-01
Created By
Revised By

Commodities

Primary Commodities: Mica



Location

Township or Area: Burgess

Latitude: 44° 45' 45.95"    Longitude: -76° 9' 47.31"

UTM Zone: 18    Easting: 407949   Northing: 4957255    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C16SE

Point Location Description: open pit

Location Method: AMIS Site Visit

Access Description: From Smith Falls, southwest on hwy 15 for 17.96km turning right onto Briton-Houghton Bay Rd for 3.42km. Turn left onto medium based road and continue for 500m. Site is located ~40m to south of road's end.



Exploration History

1880’s: W. Plummer – in operation. 1905-06: G.W. McNaughton – in operation


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Frontenac

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Siltstone 1 Is

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PhlogopiteEconomicOre
2ApatiteEconomicOre
3CalciteEconomicOre
4PyriteEconomicOre

Mineralization Comments

Sep 09, 2015 (A Wilson) - The veins are composed of pink calcite, phlogopite, apatite and some pyrite. Some excellent mica was produced. The mica was a golden amber colour



Mineral Record Details

Characteristics
Rank Characteristic            
1 Vein

References

Publication - Mica, its occurrence, exploitation and uses; Canada Mines Branch, Publication no. 118

Publication Number: CMB Pub 118 Page: 188-190  Date: 1912

Author: de Schmid, H. S.

Publisher Name: Canada Mines Branch

Location: https://doi.org/10.4095/297232


Book - NMI 31C16 MIC 39

Publication Number: Date: 1996

Author:

Publisher Name:

Location:


MonoMap - Geological notes for maps nos. 2053 and 2054, Madoc-Gananoque area

Publication Number: S012 Page: 27  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Phlogopite mica in Ontario

Publication Number: MDC008 Page: 81-82  Date: 1968

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Gananoque area, Ontario

Publication Number: M2054 Scale: 1:126,720    Date: 1998

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geology Perth, Lanark and Leeds Counties, Ontario

Publication Number: Map 1089A Scale: 1:63,360    Date: 1961

Author: Wilson, M E; Dugas, J

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/107951


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