Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31E01SE00130

Record: MDI31E01SE00130

General

Mineral Record Identification
Record Name(s) Earle Occurrence - 1986, Earl Farm - 1986, Black Diamond - 1986
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1991-Mar-25
Date Last Modified 2022-Mar-04
Created By
Revised By

Commodities

Primary Commodities: Marble (Structural Material)



Location

Township or Area: Monmouth

Latitude: 45° 0' 48.3"    Longitude: -78° 14' 40.01"

UTM Zone: 17    Easting: 717129   Northing: 4988135    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31E01SE

Point Location Description: General

Location Method: Data Compilation

Access Description: 2.0 km west of South Wilberforce.



Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Bancroft

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Marble 1 Host

Lithology Comments

Jan 26, 2017 (A Wilson) - The occurrence was formerly exposed by an open cut on the property of Mr. George Earle. The rock exposure was removed recently when the road was widened. The occurrence is described here for historic interest.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1CalciteEconomicOre
2FeldsparEconomicOre
3PhlogopiteEconomicOre
4GoethiteEconomicOre
5PyroxeneEconomicOre
6MicaEconomicOre
7QuartzEconomicOre

Mineralization Comments

Jan 26, 2017 (A Wilson) - Prismatic crystals of fluor-richterite measuring up to 25 cm long occur with minor amber mica and clinopyroxene in light salmon-pink coarsely crystalline calcite. The fluor-richterite crystals are bluish grey to black, and in places are coated with goethite. The calcite fluoresces bright pink in "short" ultraviolet light and reddish pink in "long" ultraviolet light.


Dec 07, 2005 (D Laidlaw) - Prismatic crystals of fluor-richterite up to 25 cm long (MP39, p72).



Mineral Record Details

References

Publication - Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario; Geological Survey of Canada, Miscellaneous Report 39

Publication Number: Misc Rep 39 Scale:     Date: 1986

Author: Sabina, A.P.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/121046


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