Ontario Geological Survey
Permanent Link to this Record:
MDI52K01SW00009
| Record Name(s) | Rainbow Quarry - 1972 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1987-May-19 |
| Date Last Modified | 2022-Mar-30 |
| Created By | |
| Revised By |
Primary Commodities: Quartzite
Township or Area: Whipper Lake Area
Latitude: 50° 5' 49.9" Longitude: -92° 17' 35.59"
UTM Zone: 15 Easting: 550550.412 Northing: 5549676.606 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52K01SW
Point Location Description: Transfer
Location Method: Conversion from MDI
1972: mariposite quarried by Rainbow Quarries Ltd. for decorative use in construction and novelty items. Trench is 46.5 m by 1-3 m by 1-2 m in size.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52K01SW0010C1 | 52K01SW0018 | 52K01SW0018 |
| Rock Type | Rank | Composition | Texture | Relationship | Mafic pillowed flow | 1 |
|---|---|---|---|---|
| Sandstone | 2 | quartzite |
Mar 30, 2022 (Therese Pettigrew) - The area is underlain by mafic to intermediate metavolcanics with intercalated metasediments. The deposit comprises two quartzite units with fuchsite-mariposite and sericite developed in thin layers parallel to the strike of the units. Workings consist of a trench, 46.5 m long, 3 m wide at the east end and l m wide at the west end, oriented parallel to the strike of the unit. The rocks exposed on the property are mafic metavolcanics, some units showing highly deformed pillows with intercalated micaceous quartzite units. A well developed foliation trends 090-095 degrees and dips 75-80 degrees south. The green fuchsite-mariposite is developed in 1 to 2 mm layers parallel to the foliation separated by 2 to 10 mm. This mineral is also present in much smaller amounts throughout much of the quartzite giving most of it a bright green colour. White mica, probably sericite, is developed in the quartzite to the south of the trench. This part of the deposit is folded into many en echelon drag folds plunging 83 degrees in direction 050 degrees. The rock breaks readily along the foliation. Veins of white to rusty quartz cut both the quartzite and adjacent meta volcanics. Small amounts of pyrite, chalcopyrite and galena are present in these veins. The quartzite is exposed on the north limb of a northeast plunging fold and similar units without the fuchsite/mariposite occur on the south limb at the same stratigraphic level (Storey, 1986).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Fuchsite | Economic | Ore | ||||
| 2 | Mariposite | Economic | Ore |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1972 | 500 |
Granite 500 Tonnes |
Produced 186 cubic meters of stone. |
Mono - Building and ornamental stone inventory in the districts of Kenora and Rainy River
Publication Number: MDC027 Page: 66-67 Date: 1986
Author: Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
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