Ontario Geological Survey
Permanent Link to this Record:
MDI31E14SW00008
| Record Name(s) | Bernard Lake Sunstone Occurrence - 1944 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-04 |
| Date Last Modified | 2022-Apr-26 |
| Created By | |
| Revised By |
Primary Commodities: Feldspar (Gemstones)
Township or Area: Strong
Latitude: 45° 44' 23.2" Longitude: -79° 22' 6.61"
UTM Zone: 17 Easting: 626920.998 Northing: 5066430.003 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 31E14SW
Point Location Description: approximate
Location Method: Data Compilation
A yellowish white cabochon, somewhat less transparent but with more brilliant fire than moonstone from Ceylon, has been cut form peristerite collected near Sundridge in Strong Township.
Province: Grenville
Subprovince: Central Gneiss Belt
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gneiss-Unsubdivided | 1 | Granite | Contains |
|---|---|---|---|---|
| Pegmatite | 2 | Host |
Feb 10, 2011 (A Wilson) - Patches of pink sunstone and pink peristerite occur in granite gneiss exposures along the eastern shore of Bernard Lake. The patches measure 10 to 15 mm in diameter.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Albite | Economic | Ore | ||||
| 2 | Feldspar | Economic | Ore |
Feb 10, 2011 (A Wilson) - The mineral is described as peristerite, variation sunstone. Both the sunstone and peristerite are suitable for lapidary purposes.
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Publication - A Catalogue of Canadian Minerals; Geological Survey of Canada, Paper 69-45
Publication Number: Paper 69-45 Page: 12 Date: 1972
Author: Traill, R.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/102924
Publication - 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: 98 Date: 1986
Author: Sabina, A.P.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/121046
Map - Portions of the districts of Parry Sound and Muskoka, Province of Ontario
Publication Number: ARM51A Scale: 1:126,720 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
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