Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16NW00164

Record: MDI31D16NW00164

General

Mineral Record Identification
Record Name(s) Lot 16 - 1900, Miller's Phosphate - 1900
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1993-Apr-26
Date Last Modified 2022-Dec-05
Created By
Revised By

Commodities

Primary Commodities: Apatite (Gemstones)



Location

Township or Area: Monmouth

Latitude: 44° 58' 10.89"    Longitude: -78° 17' 4.24"

UTM Zone: 17    Easting: 714135   Northing: 4983171    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16NW

Point Location Description: Precise

Location Method: Data Compilation

Access Description: 0.3 km west of McCue Lake.



Exploration History

circa 1900: trench (29x6x3m deep) and a pit 8x8x5 m deep. Old workings for mica occur in the northwest corner of lot 16 con 10. The main workings are a curved trench 95 ft. long, 20 feet wide and from 5 to 10 feet deep with a pit 25 feet in diameter and 15 feet deep.


Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Elzevir

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Calcite Host
Gneiss-Unsubdivided 2 Syenitic Contains
Limestone 3 Serpentine Contains

Lithology Comments

Jan 27, 2017 (A Wilson) - Rocks present are rusty syenite gneiss, crystalline serpentine limestone and pegmatite. This deposit was opened as a phosphate prospect about 1900. Apatite occurs as light green transparent crystals and granular masses in coarsely cleavable pink to white calcite which fluoresces bright pink under "short" ultraviolet rays and reddish pink under the "long" rays. Black mica and colourless crystals of orthoclase also occur in the calcite. The pegmatite contains crystals of dark green amphibole, pink feldspar, biotite, titanite and pyrite. Crystalline limestone associated with the deposit contains orange chondrodite, light green and blue apatite, mica, colourless to smoky clinoamphibole, colourless to light green clinopyroxene and serpentine. These minerals occur in the adit area and in the nearby trench. Thorite, thorianite and uranophane occur as irregular grains and aggregates in calcite exposed by a trench on the ridge that parallels Gibson Road. Colourless, white and light grey clinoamphibole is abundant as coarsely bladed aggregates. Smoky quartz, light green clinopyroxene, green apatite, pyrite and white to grey and tan-coloured talc also occur in the calcite.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ApatiteEconomicOre
2MicaEconomicOre

Mineralization Comments

Jan 27, 2017 (A Wilson) - Small books of amber mica and apatite occur in coarse white calcite vein material. A. Gibson reported that books as much as 16 inches in diameter were found in the bottom of the pit and that shipments were made. Old workings for mica occur in the northwest corner of lot 16, concession X, Monmouth township, northwest of McCue Lake. The main working is a curved trench 95 feet long, 20 feet wide, and from 5 to 10 feet, deep with a pit 25 feet in diameter and 15 feet deep. Several small pits occur to the northwest. The work was carried out about 1900, and the trench and pits are now overgrown.



Mineral Record Details

References

Map - Monmouth Township, Haliburton County

Publication Number: M2174 Scale: 1:31,680    Date: 1970

Author: Armstrong H.S., Gittins J.

Publisher Name: Ontario Dept. of Mines

Location:


Book - 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: 58-59  Date: 1986

Author: Sabina, A.P.

Publisher Name: Geological Survey of Canada

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


Part - Mineral occurrences in the Haliburton area

Publication Number: ARV52-02 Page: 58-59  Date: 1998

Author: Satterly J.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County

Publication Number: OFR5021 Page: 121  Date: 1997

Author: Armstrong H.S., Gittins J.

Publisher Name: Ontario Dept. of Mines

Location:


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