A Perfect Staurolite Crystal on Matrix from Russia - 2.2"

A perfect Staurolite crystal on matrix from Russia. It is a 90 degree cross, which is of the rarest form of all Staurolite crystals, and most valued.
Location: Kola Peninsula, Russia.
Size: 5.6 x 5.5 x 3.1 Centimeters
Weigh: 105.7 Grams