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Ontario Geological Survey
Permanent Link to this Record:
MDI52K16NE00008
| Record Name(s) | Curie Lake Beryl - 1975 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2002-Nov-29 |
| Date Last Modified | 2023-May-23 |
| Created By | |
| Revised By |
Primary Commodities: Rubidium
Secondary Commodities: Lithium, Cesium, Beryllium
Township or Area: Curie Lake Area
Latitude: 50° 57' 6.76" Longitude: -92° 12' 1.35"
UTM Zone: 15 Easting: 556167.1 Northing: 5644777.99 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52K16NE
Point Location Description: Point described by Breaks 2002
Location Method: Data Compilation
Access Description: Located approx. 80 km NE of Ear Falls with access by float-equipped aircraft to Curie Lake.
No assessment reports were found on file. The showing was mapped by OGS staff in 1975. OGS staff sampled the showing in 2001.
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Host |
|---|---|---|---|---|
| Granite | 2 | Tourmaline-muscovite pegmatitic leucogranite | Adjacent | |
| Arenite | 3 | Near |
Aug 13, 2020 (Bill Paterson) - Breaks et al. (2001) observed that beryl crystals occur sporadically in quartz-rich patches with increased tourmaline abundance in tourmaline-muscovite pegmatitic leucogranite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Beryl | Economic | Ore | ||||
| 1 | Tourmaline | Economic | Gangue | ||||
| 2 | Garnet | Economic | Gangue |
Aug 13, 2020 (Therese Pettigrew) - The occurrence on the eastern shoreline of Curie Lake is a single 5 cm diameter light green crystal in a quartz-rich patch within a tourmaline-rich pegmatitic leucogranite. Sample 01-FWB-17 from the biotite granite returned an assay of 85 ppm Li (Breaks et al., 2001). Tourmaline-muscovite pegmatitic leucogranite at Curie Lake contains relatively abundant black tourmaline (5 volume %) that is gradational into medium- to coarse-grained biotite granite. The tourmaline also occurs in quartz-rich patches where it is associated with rare pale green beryl. The most evolved tourmaline from the Allison Lake batholith is hosted by the potassic pegmatite at Curie Lake (locality 01-FWB-17-03). This is the only tourmaline in the batholith that has not interacted with the surrounding metasedimentary host rocks. This fine-grained, black tourmaline is schorl with almost no magnesium, elevated manganese content (0.3-1.4 weight % MnO) and moderate estimated lithium content (<0.4 weight % Li2O). (Breaks et al., 2003).
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Cesium | Unknown | 38 | ppm | |||
| Lithium | Unknown | 85 | ppm | |||
| Rubidium | Unknown | 2259 | ppm |
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Compend - Summary of Field Work and Other Activities, 2001
Publication Number: OFR6070 Page: 39-6 Date: 2001
Author: Baker C.L., Kelly R.I., Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
Data - Electron Microprobe and Bulk Analyses of Fertile Peraluminous Granites and Related Rare-element Pegmatites, Superior Province, Northwest and Northeast Ontario: Operation Treasure Hunt
Publication Number: MRD111 Date: 2002
Author: Tindle A.G., Selway J.B., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Operation Kenora-Ear Falls, Papaonga-Wapesi lakes sheet, District of Kenora
Publication Number: P1200 Scale: 1:63,360 Date: 1997
Author: Breaks F.W., Bond W.D., Stone D., Harris N., Desnoyers D.W.
Publisher Name: Ontario Division of Mines
Location:
Mono - Fertile Peraluminous Granites and Related Rare-Element Mineralization in Pegmatites, Superior Province, Northwest and Northeast Ontario: Operation Treasure Hunt
Publication Number: OFR6099 Page: 19 Date: 2003
Author: Breaks F.W., Selway J.B., Tindle A.G.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Red Lake Resident Geologist District Office