Biotite from
Canada | |
| I.C.L. Webster, G.E. Ray and A.R. Pettipas (1992) An Investigation of Selected Mineralized Skarns in British Columbia. British Columbia Geological Survey Paper 1992 |
USA | |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 |
| Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155 |
| Econ Geol (1995) 90:343-368 |