Ref.: Annual Report Volumes #20, #21, #22 and #24 of the Dept. of Mines, Ontario, dated 1911 - 1915
In crystalline limestone.
"The deposit was worked for graphite from 1910 to 1913 by the Virginia Graphite Company. The Tonkin-DuPont Graphite Company is successor to the Virginia Graphite Company, having been organized in July, 1913.
The mine consists of an adit, 30 m long, and four pits, the largest measuring 12 m by 23 m and 30 m deep. Several graphite prospects in Monmouth township, Haliburton County, and in Cardiff Township, Hastings County, had been opened up and the ore treated in the company's mill at Wilberforce
Mindat Article
10. Graphite in the Bancroft area, Ontario, Canada, by Frank Festa
References
Hewitt, D. F. (1965) Graphite in Ontario. Industrial Minerals Report No. 20, Ontario Department of Mines
Mineral List
18 entries listed. 10 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please
register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Mineral and Locality Search
