Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31M05NE00048

Record: MDI31M05NE00048

General

Mineral Record Identification
Record Name(s)	Drummond Mine - 1914, Cobalt Comet Mines Ltd. - 1913, Silver Miller Mines Ltd. - 1968
Related Record Type	Partial
Related Record(s)
Record Status	Past Producing Mine Without Reserves or Resources
Date Created	1980-Oct-01
Date Last Modified	2023-Aug-24
Created By
Revised By

Commodities

Primary Commodities: Silver, Cobalt

Secondary Commodities: Copper, Nickel, Lead, Zinc

Location

Township or Area: Coleman, Coleman

Latitude: 47° 22' 29.85" Longitude: -79° 39' 9.85"

UTM Zone: 17 Easting: 601707 Northing: 5247713 UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 31M05NE

Point Location Description: Drummond Main Shaft.

Location Method: AMIS Site Visit

Access Description: Take highway 11b south to Coleman Road, continue southeast on Coleman Road for 3.4km to Kerr Lake Road; travel easterly for 1.1km to a white two storey house, go northeast along old trail for 250m to the Wright Shaft.

Exploration History

1904: M.P. Wright - discovery of silver. 1904-1913: Drummond Mines Ltd. -in production, underground development (5 shafts), extensive surface trenching. 1913-1915: Cobalt Comet Mines Ltd. - in production. 1917: Kerr Lake Mines Ltd. - in production 1978: Canadaka Mines Limited - DD-13-8094 ft, assays.

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
CO-0594/ 63.3560	31M05NW0405	31M05NW0405

Geology

Province: Southern

Subprovince: Cobalt Basin

Supergroup: Huronian Supergroup

Formation Group: Cobalt Group

Geological Age: Paleoproterozoic

Lithology

Lithology Data
Rock Type	Rank	Composition	Relationship
Diabase	1	Diabase	Host
Vein	2	Calcite	Contains
Sandy Conglomerate	3	Conglomerate, Greywacke, Quartzite	Host

Lithology Comments

Feb 12, 2015 (A Wilson) - The vein structures, gangue, and to a small extent at least, cobalt mineralization appear to have persisted into the Keewatin. Thus the easterly extension of the Wright shaft vein in Keewatin rock in a small pit and trench at 800 feet west and 650 feet north of the southwest corner of the South claim shows a little cobalt mineralization. Two veins in the north part of the South claim, one 600 feet due east of the northwest corner, the other 500 feet east and 170 feet south, contain cobalt mineralization where traversing Keewatin sediments. Of the numerous silver-bearing veins discovered on the property what may be called the Main Shaft vein was the most important one; it is the direct extension of the Fleming vein on the Kerr Lake property. The largest ore shoot on the Main Shaft vein was in the vicinity of the Main Shaft and is marked by an open cut; the vein was explored and mined from the 50 and 100-foot levels. Brigstocke mentions a level at 200 feet deep; presumably this was entirely in Keewatin sediments. Another important ore shoot on this vein and again marked by a large open cut was in the vicinity of No.4 shaft. This shaft appears to be some 80 feet deep with a level at 60 feet (connecting with the 50-foot main shaft level) and another (a small one) at 78 feet. Brigstocke notes that the Wright shaft vein was unimportant. From the large open pit on what is sometimes called the Cosmopolitan vein, (striking a little north of east and 150 feet north of the No.5 shaft) it is inferred that a substantial production was obtained from it. The Little No.3 Kerr Lake vein extends into the Drummond property but apparently was of little consequence. Shaft No.5 (200 feet deep) was put down either on or close to this vein. Levels were established at 75 and 125 feet and possibly at other depths as well. The North claim was very intensively trenched in the early days of the camp and a little diamond drilling done on it without revealing veins of economic interest. In the Keewatin at several places small quartz veins occur; they appear to be distinctly older than the normal silver-cobalt-calcite ones.

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type
3	Smaltite	Economic	Ore
4	Niccolite	Economic	Ore
2	Silver	Economic	Gangue
5	Pyrite	Economic	Gangue
6	Galena	Economic	Gangue
7	Sphalerite	Economic	Gangue
8	Chalcopyrite	Economic	Gangue

Mineralization Comments

Feb 12, 2015 (A Wilson) - Ore was found only where the veins were hosted in Cobalt conglomerate.

Mineral Record Details

Classification
Rank	Classification
1	Vein (Cobalt-Type)

Characteristics
Rank	Characteristic
2	Stratabound
1	Vein

Production Data
Year	Tonnes	Commodities	Reference	Comment
1905	36769	Silver 120917410 Cobalt 111597	119417 kg Co, 110,211,180 g Ag MDC010, p. 129	total production 1905-1936 (intermittent); 245,809 lb Co ($35,766.00); 3,887,585 oz Ag ($1,819,151.00)

References

File - Resident Geologist file CO-0648

Publication Number: Date:

Author:

Publisher Name:

Location: Kirkland Lake RGP Office

Map - Cobalt silver area, southeastern sheet, Timiskaming District

Publication Number: M2052 Scale: 1:12,000 Date: 1997

Author: Thomson R.