Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16NW00282

Record: MDI31D16NW00282

General

Mineral Record Identification
Record Name(s) Hwy 503 Cut - 1912, Hadley Granite Quarry - 1912, McCue Lake - 2016
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Mar-23
Date Last Modified 2022-Apr-26
Created By
Revised By

Commodities

Primary Commodities: Mineral Specimen



Location

Township or Area: Monmouth

Latitude: 44° 58' 9.25"    Longitude: -78° 16' 43.09"

UTM Zone: 17    Easting: 714600   Northing: 4983136    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16NW

Point Location Description: General, 0.7 km southwest of Tory Hill.

Location Method: Data Compilation

Access Description: Road-cut on Hwy 503, 0.5 km from the junction between Hwy 121 and Hwy 503 at Tory Hill.



Exploration History

The quarry was opened in 1912. It was operated in 1935 by Mr. Allan Hadley who shipped about 136 t of granite to Toronto for use as paving stone and monuments. Examples of its use as monument stone may be seen at the Gooderham cemetery on Highway 503


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Elzevir

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Granite 1 Granite Is

Lithology Comments

Jan 28, 2017 (A Wilson) - Fine-grained red granite was formerly quarried from this deposit. Grains of magnetite and pyrite occur in the granite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ApatiteEconomicOre
2BariteEconomicOre
3BastnaesiteEconomicOre
4CalciteEconomicOre
5MicaEconomicOre
6MolybdeniteEconomicOre
7PyriteEconomicOre
8TalcEconomicOre
9ThorianiteEconomicOre
10ThoriteEconomicOre
11TitaniteEconomicOre
12TremoliteEconomicOre

Mineralization Comments

Jan 28, 2017 (A Wilson) - Veins of coarse white to pink and orange calcite cut the granite; the calcite contains dark green to black thorianite crystals ( .. micro"). light brown to amber plagioclase crystals measuring up to 2 cm wide, greenish blue to light green prismatic aggregates of clinopyroxene, green clinoamphibole, orange-red to brown bastnaesite as irregular patches associated with pyroxene and plagioclase, and reddish brown titanite grains. The white and pink calcite fluoresces pink under .. short" ultraviolet rays. The crystalline limestone is finely disseminated with molybdenite. pyrite (small crystals) and amber mica. It contains crystals of green apatite and greyish green prismatic aggregates of plagioclase.



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 Page: 88  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