Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52A10SW00035

Record: MDI52A10SW00035

General

Mineral Record Identification
Record Name(s) Lambert Island - 1884
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1992-Mar-23
Date Last Modified 2022-Mar-02
Created By
Revised By

Commodities

Primary Commodities: Fluorite

Secondary Commodities: Silver, Lead



Location

Township or Area: Lambert Island Area

Latitude: 48° 32' 13.82"    Longitude: -88° 53' 10.17"

UTM Zone: 16    Easting: 360771   Northing: 5377725    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 52A10SW

Point Location Description: AMIS location

Location Method: Data Compilation



Exploration History

1884: surface exploration including the sinking of a pit on a quartz-fluorite vein. No assessment reports were found on file.


Geology

Province: Southern

Formation Group: Animikie Group

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Diabase 1 Diabase Host
Vein 2

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1QuartzEconomicGangue
2FluoriteEconomicGangue

Mineralization Comments

Mar 23, 2020 (Therese Pettigrew) - Lambert Island, off Amethyst Harbour, is underlain by a diabase sill which presumably overlies Animikie sediments. Approximately $500 were expended in 1884 in testing a vein of rose-coloured quartz and fluorite between 18 inches and 3 feet wide which trends northwest across the island. A pit was sunk on the vein. It did not penetrate through the diabase sill, estimated to be 30 feet thick (Ingall, 1888).



Mineral Record Details

References

Book - RES. GEOL. MIN. DEPT. FILE, T. BAY

Publication Number: N/A Scale:     Date: 1996

Author:

Publisher Name:

Location:


Map - Loon Lake area, Gunflint iron range, District of Thunder Bay

Publication Number: M1960P Scale: 1:31,680    Date: 1997

Author: Moorhouse W.W.

Publisher Name: Ontario Dept. of Mines

Location:


Publication - Report on Mines and Mining on Lake Superior, p. 65

Publication Number: Ann Rep 3 Scale:     Date: 1888

Author: Ingall, E.D.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/297102


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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office