Marcasite from Chelsea, Les Collines-de-l'Outaouais RCM, Outaouais, Québec, Canada
Canada | |
| Jeffrey de Fourestier field collected specimens |
| Grice, J.D. (1981): Hexoctahedral Fluorite Crystals from Old Chelsea, Quebéc. Mineralogical Record 12, 103-104 |