Ontario Geological Survey
Permanent Link to this Record:
MDI000000001227
Record Name(s) | Discovery Mine - 1993, Crown Jewel Property - 1992, Siltamaki - 1992 |
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Related Record Type | |
Record Status | Occurrence |
Date Created | 2011-Apr-26 |
Date Last Modified | 2021-Nov-24 |
Created By | J Scott |
Revised By | Therese Pettigrew |
Primary Commodities: Amethyst
Township or Area: Tartan Lake Area
Latitude: 48° 38' 39.66" Longitude: -88° 58' 19.76"
UTM Zone: 16 Easting: 354731 Northing: 5389798 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10NW
Point Location Description: Field visit with GPS, confirmed with Google Earth
Location Method: Field Visit with GPS
1992: A. Siltamaki carried out prospecting. 1993: A. Siltamaki carried out prospecting, physical and mechanical stripping. 1995: A. Siltamaki carried out prospecting and mechanical stripping. 2001-2002: Prospecting and mechanical stripping. 2004-2006: Mechanical and manual stripping of overburden and trenching. Scaling, sampling and washing of exposed outcrop. 2009: A. Siltamaki carried out stripping and prospecting. 2011: A. Siltamaki carried out prospecting, stripping, trenching, and sampling.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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63.6293 | 52A10NW8101 | 52A10NW8101 |
2.15869 | 52A10NW0013 | 52A10NW0013 |
2.32490 | 20000001399 | 20000001399 |
2.25778 | 52A10NW2015 | 52A10NW2015 |
63.6212 | 52A10NW9275 | 52A10NW9275 |
2.53947 | 20000008889 | 20000008889 |
2.46462 | 20000005670 | 20000005670 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Near |
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Breccia-unsubdivided | 1 | Breccia Zone Along Fault | Adjacent | |
Vein | 2 | Quartz/Amethyst |
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
---|---|---|---|---|---|---|---|
1 | Amethyst | Economic | Ore | ||||
2 | Barite | Economic | Ore | ||||
3 | Hematite | Economic | Ore | ||||
4 | Pyrite | Economic | Ore | ||||
5 | Chalcopyrite | Economic | Ore | ||||
6 | Malachite | Economic | Ore | ||||
7 | Rutile | Economic | Ore |
Mar 10, 2020 (Therese Pettigrew) - Amethystine quartz occurs along several NE-trending faults in the area. The amethyst and quartz are found as fracture-fillings in the granite as well as in small areas of the adjacent mica schist where it is in contact with the faulted intrusive rocks. Diverse colours of quartz and amethyst are present in veins, crystallized in vugs, and in brecciated zones. Other minerals present include hematite, disseminated pyrite and chalcopyrite, malachite, rutile, and barite (Assessment report 20000008889).
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