A Perfect Staurolite Crystal on Matrix from Russia - 0.9"

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: 2.3 x 1.8 x 1.5 Centimeters
Weigh: 6.1 Grams