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Ontario Geological Survey
Permanent Link to this Record:
MDI52A03NW00002
| Record Name(s) | Prince Mine - 1846, Col. J. Prince - 1846 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1985-Jun-25 |
| Date Last Modified | 2022-Mar-04 |
| Created By | |
| Revised By |
Primary Commodities: Silver
Secondary Commodities: Barite, Copper, Zinc, Cobalt
Township or Area: Blake
Latitude: 48° 7' 54.05" Longitude: -89° 18' 49.57"
UTM Zone: 16 Easting: 327847.88 Northing: 5333525.29 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A03NW, 52A03SW
Point Location Description: Precise
Location Method: Conversion from MDI
Access Description: Follow Hwy 61 south from Thunder Bay to Sturgeon Bay Road. Turn left on Sturgeon Bay Road and follow this for 5.3 km to gravel crossroads. Turn right on gravel road and follow this for 10.8 km to Jarvis River. Follow shoreline by boat for 4.8 km north. Vein is exposed on shoreline and adit is 55 m from shore.
1846: vein was found by Col. J. Prince. 1846-47: development work included 2 shafts, 2 adits, and a winze. An adit level was driven 20 m from the shore westerly through the argillites. The vein also outcrops 230 m further inland, where two shafts were sunk, one reportedly 27.5 m deep. Between the two shafts, and adit was driven 50 m into the side of the hill. At the bottom of the 27.5 m shaft, a drift was cut for 46 m. From this point, a winze was sunk to a depth of 12 m and at the bottom of this, more drifting was done for 12 m. 1848: the British North American Mining Company acquired the property. 1856: Montreal Mining Company acquired the property and conducted work to develop the vein as a copper ore body. 1871: The Ontario Mineral Lands Company acquired the property.
Province: Southern
Formation Group: Animikie Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Carbonate And Barite | Host | |
| Mudstone | 3 | Shale |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Argentite | Economic | Ore | ||||
| 2 | Silver | Economic | Ore | ||||
| 3 | Sphalerite | Economic | Ore | ||||
| 4 | Chalcocite | Economic | Ore | ||||
| 1 | Barite | Economic | Gangue | ||||
| 2 | Amethyst | Economic | Gangue | ||||
| 3 | Carbonate | Economic | Gangue |
Feb 28, 2018 (Therese Pettigrew) - This is the oldest mine on the Canadian shores of the lake, having been worked in 1846 or 1847, when it appears to have been regarded more in the light of a copper than of a silver-bearing vein. It strikes north 30 degrees to 40 degrees west (magnetic), and where it shows on the shore is split into two branches, with argillite between and diabase forming the outer walls. The two branches on the shore are 1.5 and 1.8 m thick. At the inland workings, it exists as one vein and is much thicker. It there shows a central rib of coarsely crystallized calcite with some barite, with a large proportion of largely crystallized, mostly amethestine quartz on either side. Ore containing up to 3% silver has been extracted from the old workings. The mineralization consisted of disseminated native silver in a carbonate matrix with sphalerite, argentite, and secondary copper and cobalt minerals (Tanton, 1931). The vein is likely an extension of the vein mined on Spar Island. Old assays indicate values up to 7250 ounces per ton Ag (RGP mineral deposit files, Thunder Bay office).
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Scale: Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Crooks Township, Jarvis and Prince locations, and offshore islands, District of Thunder Bay
Publication Number: R102 Scale: Date: 1973
Author: Geul J.J.C.
Publisher Name: Ontario Division of Mines
Location:
Publication - Fort William and Port Arthur, and Thunder Cape Map-area, Thunder Bay District, Ontario; Geological Survey of Canada, Memoir 167
Publication Number: GSC Memoir 167 Scale: Date: 1931
Author: Tanton, T.L.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100799
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office