Wilsonite A variety of Muscovite
5.44 ct
Trillion Cut
12.07 x 12.07 x 6.89 mm
Canada max6365
Wilsonite
A variety of Muscovite.The formula is KAl2(AlSi3O10)(OH)2
Described as an Mn-bearing "sericite" or muscovite pseudomorph after scapolite.
It comes from Canada Marble and Lime Quarry,
La Conception,Les Laurentides RCM, Laurentides,Quèbec,Canada.
Opaque to translucent is quite tough and has good Polish.