Muscovite Pseudomorph After Cordierite
John Betts - Fine Minerals
Unusual Muscovite pseudomorphs after a 12 sided Cordierite crystals up to 13 mm long. Has label indicating the specimen was from the Mark C. Bandy (?) collection and the L. A. County Museum. Ex. A. Stevenson collection #653.
Llallagua, Bustillos Province, Potosi Department, Bolivia
13 x 13 x 8 mm.