Ontario Geological Survey
Permanent Link to this Record:
MDI000000002027
| Record Name(s) | Harasym - 2016, Anderson-Harasym - 1998 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2016-Oct-17 |
| Date Last Modified | 2022-Jul-15 |
| Created By | |
| Revised By |
Primary Commodities: Amethyst
Township or Area: McTavish
Latitude: 48° 41' 30.52" Longitude: -88° 34' 26.49"
UTM Zone: 16 Easting: 384165 Northing: 5394392 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10NE
Point Location Description: Map
Location Method: Based on Assessment
Access Description: From the 4.5 kilometre mark on Superior Shores Road turn righ (south) t onto a disused logging road. An access point to the showing can be found on the west side of the trail 220 m south. A 75 m trail to the west accesses the trenches.
1998: C. Anderson and L. Harasym discovered the vein and completed stripping, blasting and sampling. 2014: J. Harasym staked the occurrence. 2015: Brushed out, pressure washed and emptied vugs of clay.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.56742 | 20000014185 | 20000014185 |
Province: Southern
Subprovince: Nipigon Basin
Formation Group: Sibley Group
Geological Age: Mesoproterozoic
Oct 17, 2016 (Andrew Tims) - The mineral occurrence is an East West trending calcite vein well mineralized with galena, chalcopyrite, and minor sphalerite. Throughout the vein are amethyst vugs filled with clay. Some of the vugs are large enough to fit many men, and show beautiful amethyst specimens inside the vugs. Removing dirt and debris from the vugs exposing amethyst along with calcite, galena, chalcopyrite and sphalerite on the foot wall of the vein. The hanging wall is Sibley sedimentary rock and also has amethyst. This material comes off in flat plates.
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Vein | 2 | Is |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Amethyst | Economic | Ore | ||||
| 2 | Galena | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Sphalerite | Economic | Ore | ||||
| 1 | Calcite | Economic | Gangue |
Map - Geological series, McTavish Township (east part of north half), District of Thunder Bay
Publication Number: P0721 Scale: 1:15,840 Date: 1997
Author: McIlwaine W.H.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office