Ontario Geological Survey
Permanent Link to this Record:
MDI31D16NW00229
| Record Name(s) | MacKay Property - 1981, Central Monmouth Nepheline Complex - 1960 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1981-Dec-04 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Nepheline Syenite
Secondary Commodities: Phosphate, Sodalite, Zircon
Township or Area: Monmouth
Latitude: 44° 59' 21.96" Longitude: -78° 20' 53.24"
UTM Zone: 17 Easting: 709047 Northing: 4985198 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D16NW
Point Location Description: Precise
Location Method: Data Compilation
Access Description: Take Highway 500 from Tory Hill for 3/4 mile (1.2 km) toward Gooderham, then branch off to a road leading south (Hotspur Road); continue on this road to the point where it bends eastward, a distance of about 2 1/2 miles (4 km). A barn is situated on the west side of the road. The pits are across the field, about half a mile (0.8 km) southwest of the barn.
1941: F.B. Brower and A.H. Simpson - stripping, pitting
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Nepheline | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Nepheline | Host |
Jan 27, 2017 (A Wilson) - Nepheline pegmatite masses within a broad area of paragneisses have been exposed in two surface strippings. The northern exposure measures about 400 to 250 feet, and the southern exposure about 230 feet in diameter. The two are 10 chains apart. The northern body is a biotite-poor nepheline-albite pegmatite, the nepheline content ranging from 10 to 50%. Satterly estimates that "the best material would average 40% nepheline". The biotite occurs in masses up to 10 inches across, and comprises up to 5 per cent of the rock.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Nepheline | Economic | Ore | ||||
| 2 | Biotite | Economic | Ore | ||||
| 3 | Sodalite | Economic | Ore | ||||
| 4 | Tourmaline | Economic | Ore | ||||
| 5 | Zircon | Economic | Ore | ||||
| 6 | Cancrinite | Economic | Ore | ||||
| 7 | Albite | Economic | Ore |
Jan 27, 2017 (A Wilson) - A chip sample representing 70 ft. across the gneissic structure in one of the strippings returned 59.1% of black minerals and 40.8% of light minerals. Satterly regarded the economic possibilities as being limited as long as large supplies of relatively pure nepheline are available at low cost.
Publication - Rock and mineral collecting in Canada, volume II: Ontario and Quebec; Geological Survey of Canada, Miscellaneous Report 8
Publication Number: GSC MR 8 Page: 61 Date: 1971
Author: Sabina, A.P.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/308101
Part - Mineral occurrences in the Haliburton area
Publication Number: ARV52-02 Page: 76-77 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Nepheline syenite deposits of southern Ontario
Publication Number: ARV69-08 Page: 46-47 Date: 1997
Author: Hewitt D.F., Armstrong H.S., Tilley C.E.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County
Publication Number: OFR5021 Page: 62-63 Date: 1997
Author: Armstrong H.S., Gittins J.
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:
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