A Perfect Staurolite Crystal on Matrix from Russia - 1.9"

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: 4.8 x 3.4 x 1.6 Centimeters
Weigh: 22.1 Grams