Gypsum from selected localities.
Canada | |
| Ann P.Sabina (1986), Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39 p.138 |
Geological Survey of Canada Miscellaneous Report 39. Nelson Quarry, page 140.; Ann P.Sabina (1986), Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39 p.140 | |
| Ann P.Sabina (1986), Rocks and Minerals for the Collector, Bancroft-Parry Sound Area and Southern Ontario. GSC Misc. Report 39 p.140 |
Ann P. Sabina, Rocks & Minerals for the Collector: Geoligical Survey of Canada Miscellaneous Report 39. Page 138-140, Waterdown Area. |