Corundum from selected localities.
Canada | |
| Can Mineral December 1966 v. 8 no. 5 p. 593-609 |
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31E01SE00224.html |
Canada | |
| Can Mineral December 1966 v. 8 no. 5 p. 593-609 |
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31E01SE00224.html |