Ontario Geological Survey
Permanent Link to this Record:
MDI31E01SE00134
| Record Name(s) | Liscombe Mine - 1943, American Molybdenite Mine - 1917 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Past Producing Mine Without Reserves or Resources |
| Date Created | 1991-Mar-25 |
| Date Last Modified | 2022-Jun-29 |
| Created By | |
| Revised By |
Primary Commodities: Molybdenum, Apatite (Gemstones), Mica
Township or Area: Monmouth
Latitude: 45° 1' 40.67" Longitude: -78° 12' 49.98"
UTM Zone: 17 Easting: 719481.76 Northing: 4989833.54 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31E01SE
Point Location Description: Precise
Location Method: Data Compilation
Access Description: On the western slope of a rock ridge 1.3 km southeast of Wilberforce.
1917:American Molybdenum Ltd. - mine built and in production. 1975 – 1978: The deposit was quarried of gem apatite. About 1 million carats (rough) with maximum individual size of about 100 carats were taken out.
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pyroxenite | 1 | Medium- To Coarse Grained | Pyroxenite | Host |
|---|---|---|---|---|
| Granite | 2 | Granite | Medium- To Coarse Grained | Host |
| Limestone | 3 | Crystalline | Near |
Jan 31, 2017 (A Wilson) - The deposit was opened for molybdenum in 1917. Development consisted of two shafts, 9 m and 12 m deep, and an open-cut. A concentrator was built on the site. About 78 t of ore were shipped from the deposit. Mine dumps are adjacent to the cement foundation of the concentrator. The mine is on the property of Mr. Orme.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 2 | Muscovite | Economic | Ore | ||||
| 3 | Phlogopite | Economic | Ore | ||||
| 4 | Apatite | Economic | Ore | ||||
| 5 | Pyroxene | Economic | Ore | ||||
| 6 | Scapolite | Economic | Ore | ||||
| 9 | Titanite | Economic | Ore | ||||
| 10 | Pyrrhotite | Economic | Ore | ||||
| 7 | Calcite | Economic | Gangue | ||||
| 8 | Plagioclase | Economic | Gangue |
Jan 31, 2017 (A Wilson) - In places, the veins are wholly composed of a crushed aggregate of phlogopite in books as much as 10 inches in diameter, but mainly less than 3 inches and sometimes a quarter of an inch in diameter. Two trenches, the largest being 21 m long by 3 m wide by 1.8 m to 3 m deep, expose a series of gneiss-hosted veins. Veins contain phlogopite, scapolite, pyroxene, calcite and graphite. In places most of the vein comprises crushed phlogopite aggregate in books ranging from very small to 25 cm across (Satterly 1943b p. 58). A carload of scrap mica and a little sheet mica were produced.
Dec 07, 2005 (D Laidlaw) - TYPE: APATITE VARIETY TRILLIUMITE MINED AS GEM.
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1917 | 70 |
Publication - Mica; Canada Mines Branch, Publication 701
Publication Number: CMB Pub 701 Page: 74 Date: 1929
Author: Spence, H.S.
Publisher Name: Canadian Dept. of Mines, Mines Branch
Location:
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 10, 221, 255 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County
Publication Number: OFR5021 Page: 210 Date: 1997
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Rocks and minerals for the collector: Bancroft - Parry Sound area and southern Ontario; Geological Survey of Canada, Miscellaneous Report 39
Publication Number: Misc Rep 39 Page: 74 Date: 1986
Author: Sabina, A.P.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/121046
Mono - Phlogopite mica in Ontario
Publication Number: MDC008 Page: 50 Date: 1968
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Monmouth Township, Haliburton County
Publication Number: M2174 Scale: 1:31,680 Date: 1970
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office