Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C16NW00013

Record: MDI31C16NW00013

General

Mineral Record Identification
Record Name(s) McDonald Mine - 1932, T.H. Craig - 1938, Canada Flint and Spar Co. - 1950
Related Record Type Simple
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1982-Mar-11
Date Last Modified 2022-May-24
Created By
Revised By

Commodities

Primary Commodities: Feldspar (Nonmetals)



Location

Township or Area: Bathurst

Latitude: 44° 54' 16.6"    Longitude: -76° 25' 48.74"

UTM Zone: 18    Easting: 387091   Northing: 4973349    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C16NW

Point Location Description: Dot symbol 'Fel' 2.8 km northeast of southeast arm of Bennett Lake.

Location Method: Data Compilation

Access Description: From Perth, west on Hwy 7 for 9.23km turning right onto Bathurst 5th Conc. Rd at Wemyss. First left on Rutherford St, Continue for 5.06km to end of road. Turn left on McVeigh Rd for approximately 430m. Turn right onto Dokken Rd and continue on main road for 1.16km. Travel along south side of swamp for 2.93 km through bush to site.



Exploration History

1928-32;1940-41,1950-51: McDonald's Mine – worked from 1928 to 1932 by T. Craig. Most of the work was confined to a single open cast pit 125 ft by 90ft. by 60 ft. deep with a small amount of stripping.


Geology

Province: Grenville

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 Host

Lithology Comments

Sep 12, 2016 (A Wilson) - The dike has an exposed width of about 100 ft. Its continuation from the pit along the strike is obscured by a rather heavy dirt cover, which entails considerable stripping. Numerous small, narrow pegmatites outcrop as hogsbacks protruding through the overburden in the supposed general area of the McDonald Showing. Mineralogically, they are all very similar, containing abundant graphic K-feldspar and quartz intergrowths, biotite, tourmaline and pyrite.




Mineralization

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

Mineralization Comments

Sep 12, 2016 (A Wilson) - The dike consists of pink spar, carrying stringer of buff-coloured spar and quartz. Black mica in large thin plates is fairly abundant and there is also considerable tourmaline in thin needles. While a large proportion of the mine output has consisted of a mixed grade of spar, recent work has shown the quality to be improving at the west end of the pit. The west face in 1932 showed a 40 foot width of high-grade, buff, crystal spar, extending almost from the surface to the floor of the pit. The heavy capping of pegmatite carrying black mica that covered the easterly section, thins towards the west, and a high percentage of the rock broken since 1931 now consists of merchantable spar.



Mineral Record Details

Production Data
Year Tonnes Commodities Reference Comment
1928 24500 IMR021 p.20 27,007 tons of feldspar

References

Publication - Feldspar, Canada Mines Branch Publication 731

Publication Number: CMB Pub 731 Page: 37, 42, 86  Date: 1932

Author: Spence, H. S.

Publisher Name: Canada Mines Branch

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


Mono - Pegmatite mineral resources of Ontario

Publication Number: IMR021 Page: 20  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Granitic pegmatites of the Bancroft area, southeastern Ontario

Publication Number: OFR5717 Page: 170-172  Date: 1990

Author: Goad B.E.

Publisher Name: Ontario Geological Survey

Location:


Book - Mineral Occurrences of Lanark (unpublished)

Publication Number: Page: 53-54  Date: 1944

Author: Satterly, J.

Publisher Name: Ontario Department of Mines

Location: Tweed RGP office


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