Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002587

Record: MDI000000002587

General

Mineral Record Identification
Record Name(s) Campus Creek Property - 2021, Highstone Pegmatite - 2021
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2021-Oct-19
Date Last Modified 2023-Jul-06
Created By
Revised By

Commodities

Primary Commodities: Lithium, Cesium, Rubidium, Tantalum



Location

Township or Area: McNamara Lake Area

Latitude: 49° 18' 38.27"    Longitude: -91° 38' 4.06"

UTM Zone: 15    Easting: 599255   Northing: 5462885    UTM Datum: NAD83

Resident Geologist District: Kenora

NTS Grid: 52G05SE

Point Location Description: Sample B419026 location from Grid Metals October 5, 2021 news release

Location Method: Data Compilation

Access Description: The Campus Creek property is located directly adjacent to the TransCanada highway (Figure 1) and is road accessible with the initial discovery attributable to the recent logging in the area.



Exploration History

2021: Grid Metals Corp. optioned the property and carried out sampling which returned up to 4.35% Li2O in grab sample.


Geology

Province: Superior

Terrane: Winnipeg River

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Pegmatite 1 spodumene-bearing pegmatite Is
Granite 2 Near

Lithology Comments

Oct 19, 2021 (Therese Pettigrew) - Multiple fertile granite and granite pegmatite dyke outcrops have been identified by geochemistry over an initial reconnaissance prospecting area of ~4 km x ~2 km (Grid Metals Corp. October 5, 2021 news release).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1SpodumeneEconomicOre
2LepidoliteEconomicOre

Mineralization Comments

Oct 19, 2021 (Therese Pettigrew) - Outcropping spodumene- and lepidolite-bearing pegmatite with high-grade Li2O contents have been identified. The spodumene in Highstone pegmatite is beige to pinkish indicating low iron content. Sample B419026 returned 4.35% Li2O. Sample B419088 returned 1.42% Li2O, 0.18% Cs2O, 0.45% Rb2O, and 304 ppm Ta (Grid Metals Corp. October 5, 2021 news release).



Assay Samples

Assay Samples
CommodityAnalytical MethodDigestion Method ResultUnitLimitQualifier
CesiumUnknown.01%
CesiumUnknown.18%
LithiumUnknown4.35%
LithiumUnknown1.42%
RubidiumUnknown.45%
RubidiumUnknown.03%
TantalumUnknown304ppm
TantalumUnknown88ppm

Mineral Record Details

Classification
RankClassification            
1 Pegmatite
Characteristics
Rank Characteristic            
1 Intrusive

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Ministry Contact Information

For detailed information regarding this mineral record please contact the Kenora Resident Geologist District Office