Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI000000002472

Deposit: MDI000000002472

General

Mineral Deposit Identification
Deposit Name(s) Selim Fluorite - 2019
Deposit Status discretionary occurrence
Date Created 2020-Dec-18
Date Last Modified 2021-Jan-27
Created By T Pettigrew
Revised By T Pettigrew

Commodities

Primary Commodities: fluorite, barite

Location

Township or Area: Lahontan

Latitude: 48° 50' 14.35"    Longitude: -87° 25' 31.34"

UTM Zone: 16    Easting: 468786   Northing: 5409459    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14SW

Point Location Description: GPS location taken by prospectors

Location Method: field visit with gps

Access Description: The Selim Fluorite Occurrence is located in Lahontan Township, approximately 7 km east of Rossport, Ontario or approximately 1.7 km west of the historic railway siding of Selim. Access is along Lakeshore Road.

Exploration and Mining History

2019: showing was discovered by S. O’Brien and M. O’Brien. No assessment reports were found on file.

Geology

Province: Superior

Subprovince: Wawa

Intrusion: Whitesand Lake Batholith

Geological Age: Archean   

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
felsic intrusive 1 host
vein 2 is

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 fluorite economic ore
2 barite economic ore

Mineralization Comments

12/18/2020 (T Pettigrew) - The fluorite mineralization occurs along with barite and amethyst in veins and vuggy breccia zones that have been traced in low outcrops of blocky medium grained granite for approximately 150 m along Lakeshore Road. Fluorite cubes vary from less than 1 mm to 2 mm with numerous cubes lining small vugs that are less than 5 cm in length. The colour varies from very dark to medium purple. Some crystals of fluorite are glassy in appearance. Barite crystals occur as small cream to pink coloured blades up to 2 cm in length. Some skeletal barite crystals appear within a fluorite groundmass. Quartz varies in colour from clear through white, yellow and purple (S. O’Brien and M. O’Brien personal communication, 2020).

Report an Error

We are continuously updating the Mineral Deposit Inventory. If you notice errors in the data please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

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