Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31F04SE00155

Record: MDI31F04SE00155

General

Mineral Record Identification
Record Name(s) Road Cut Highway 28 - 1986
Related Record Type Simple
Related Record(s)
Record Status Discretionary Occurrence
Date Created 1994-Jun-08
Date Last Modified 2022-Apr-26
Created By
Revised By

Commodities

Primary Commodities: Tourmaline, Gypsum, Mineral Specimen



Location

Township or Area: Mayo

Latitude: 45° 6' 30.77"    Longitude: -77° 37' 47.14"

UTM Zone: 18    Easting: 293126.474   Northing: 4998373.302    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31F04SE

Point Location Description: General

Location Method: Data Compilation

Access Description: On Hwy 28, 0.4 km SE of Hermon.



Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Paragneiss 1 Contains
Vein 2 Quartz-Calcite Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1TourmalineEconomicOre
2GypsumEconomicOre

Mineralization Comments

Oct 18, 2011 (A Wilson) - Black tourmaline crystals occur in quartz-calcite veins cutting rusty biotite-plagioclase gneiss. Acicular gypsum forms tufts and botryoidal crusts on the rock.



Mineral Record Details

Classification
RankClassification            
1 Vein
Characteristics
Rank Characteristic            
1 Vein

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 Page: 24  Date: 1986

Author: Sabina, A.P.

Publisher Name: Geological Survey of Canada

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


Map - Precambrian Geology, Bancroft Area

Publication Number: P3385 Scale: 1:50,000    Date: 1998

Author: Lumbers S.B., Vertolli V.M.

Publisher Name: Ontario Geological Survey

Location:


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