Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F12NW00002

Record: MDI31F12NW00002

General

Commodities

Primary Commodities: Mica, Feldspar (Nonmetals)

Secondary Commodities: Silica Sand

Location

Township or Area: Dickens

Latitude: 45° 38' 29.57"    Longitude: -77° 52' 32.26"

UTM Zone: 18    Easting: 275902.032   Northing: 5058244.739    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31F12NW

Point Location Description: Diamond symbol ' P 25 ' on shore of Dennisons Bay, Aylen Lake.

Location Method: Conversion from MDI

Access Description: These deposits are in the bush in the N part of the large point extending S from the N shore of Aylen Lake. Access is from the lake or by traverse through the bush. A camp is described (1944) as being located near the shore of a bay on the E side of the NW arm of Aylen Lake (the point). Showings : # 1- about 500 ft W are pits in the slope of a hill for 200 ft. # 2 - about 250 ft SE of the camp is a cut 10 x 10 and 5 ft deep. #3 - about 800 ft NE of the camp is a square pit 15 ft across and 20 ft deep. # 4 - the main showing is in the S half of lot 9, about 1,100 ft NE of the camp . An L-shaped group of workings consist of an open pit (100 x 10-30 x 6-15 ft deep, E-W); a small drift 50 ft E of the pit (8 ft high, 10-20 ft across and 15 ft long down-dip); to the E of the drift is an open cut (80 x 25 x 10-15 ft deep).

Exploration History

1919-20 : Opeongo Mica Mines Ltd (T.A.Low) originally worked the property and removed 65 tons of rough mica. See OGS 1944 for a description of the workings. 1944 : the Algonquin Mica Prospecting Syndicate stockpiled 50 tons of feldspar from pegmatite in a pit 20 ft long and 10 ft deep on lot 10 (S half).

Geology

Province: Grenville

Geological Age: Mesoproterozoic  

Geology Comments

Dec 07, 2005 (C Papertzian) - Pegmatite dykes and sills cut anorthositic gabbro. The pegmatites are 1.5-2.0 m wide and contain some large biotite and muscovite books, coarse microcline and albite and quartz (some rock crystal and some smoky). They are poorly zoned or homogeneous. Monazite, euxenite (?) and garnets are described on lot 9 (showing # 1).

Lithology

Mineralization

Mineralization Comments

Apr 20, 2022 (Sheree Hinz) - Opeongo Mica Mines ltd. of Renfrew produced 65 tons of mine-run mica in 1919 and 1920.

Mineral Record Details

References

Part - Mineral occurrences in the Renfrew area

Publication Number: ARV53-03 Page: 123-125  Date: 1998

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Pegmatite mineral resources of Ontario

Publication Number: IMR021 Page: 30  Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological series, industrial minerals of the Pembroke-Renfrew area, southern Ontario

Publication Number: P2209 Scale: 1:126,720    Date: 1980

Author: Vos M.A., Storey C.C.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Industrial minerals of the Pembroke-Renfrew area, part 2

Publication Number: MDC022 Page: 122-3, 150-3  Date: 1981

Author: Storey C.C., Vos M.A.

Publisher Name: Ontario Geological Survey

Location:

Part - Mines of Ontario in 1944

Publication Number: ARV54-02.001 Page: 104-5  Date: 1997

Author: Tower W.O., Smith R.L., Bawden W.E., Cooper D.F., Taylor J.B., Little E.S., Weir E.B., Douglass D.P.

Publisher Name: Ontario Dept. of Mines

Location:

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