Muscovite from Trethewey Mine, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada
Canada | |
| [var. Sericite] Miller, Willet G. (1910): The Cobalt-Nickel Arsenides and Silver Deposits of Temiskaming (Cobalt and Adjacent Areas) Ontario Bureau of Mines, Vol. 19, pt.2, p. 52. |