Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C09SE00013

Record: MDI31C09SE00013

General

Mineral Record Identification
Record Name(s) Elgin Silica Sand Property - 1958, Hartsgravel Road Deposit - 1958
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1982-May-27
Date Last Modified 2022-Feb-18
Created By
Revised By

Commodities

Primary Commodities: Sandstone (Silica), Silica Sand



Location

Township or Area: Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, Bastard, South Crosby, South Crosby, South Crosby, South Crosby, South Crosby, South Crosby

Latitude: 44° 36' 51.33"    Longitude: -76° 10' 4.21"

UTM Zone: 18    Easting: 407341   Northing: 4940764    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C09NE, 31C09SE

Point Location Description: Precise

Location Method: Data Compilation



Exploration History

1958: Rochester and Pittsburgh Coal Company (Canada) Limited & Wedron Silica Company- DD-19-2167 ft, crushing, analysis. 1962: Canadian Silica – DD-15. 1978: Ministry of Natural Resources – DD-1-22.9 ft.


Geology

Province: Paleozoic and Mesozoic Basins

Geological Age: Paleozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Sandstone 1 Is
Gneiss-Unsubdivided 2 Footwall

Lithology Comments

Nov 21, 2013 (A Wilson) - The Potsdam sandstone is grey to white to brown and has a thickness of 20-147 feet. The sandstone is comprised of light grey to buff-grey, sub-angular to rounded quartz grains within a siliceous matrix. The sandstone is fine- to medium-grained, and pyrite is found in fractures in the grains. A 1 m interval of sandstone containing quartz pebble beds was observed at the unconformity between the Paleozoic rocks and the Precambrian basement.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1SilicaEconomicOre
2PyriteEconomicGangue

Mineralization Comments

Nov 21, 2013 (A Wilson) - The grains are subangular to well-rounded. There is some iron staining, but the main iron-bearing impurity is pyrite that occurs in minute grains intergrown with the quartz. The ore zone ranged in depth from 5.5 to 44.8. Laboratory tests showed that a range of silica products could be produced. Beneficiation of the sand would be required in order to produce a glass sand. Iron analyses ranged from 0.14 to 0.45% Fe2 O3 The +100 mesh product from the leached silica product analyzed 0.065% Fe2 O3 and 0.14% Al2 O3 . The -100 mesh fraction analyzed 0.058% Fe2 O3 and 0.47% Al2 O3 . The original results (1958) were considered to be unsatisfactory. Canadian Silica estimated the ore zone to average 5.8 m in depth. A hole drilled by the Ministry of Natural Resources in 1978 returned an average assay of: 96.10% SiO2, 0.32% Fe2O3, 1.28% Al2O3, 0.06% MgO and 1.84% CaO.



Mineral Record Details

Classification
RankClassification            
1 Industrial
Characteristics
Rank Characteristic            
1 Stratiform

References

Mono - Silica in Ontario

Publication Number: IMR009 Scale:     Date: 1997

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Silica sand potential in eastern Ontario, preliminary report 1

Publication Number: OFR5265 Scale:     Date: 1979

Author: Powell R.D., Klugman M.A.

Publisher Name: Ontario Geological Survey

Location:


Map - Part of southeastern Ontario showing distribution of Potsdam sandstone

Publication Number: M1946-09 Scale:     Date: 1997

Author: Keith M.L., Baker M.B., Wright J.F., Wilson A.E., Wilson M.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Geological series, Paleozoic geology, Westport area, southern Ontario

Publication Number: P2723 Scale: 1:50,000    Date: 1984

Author: Williams D.A., Wolf R.R.

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