A Perfect Staurolite Crystal on Matrix from Russia - 4.4"

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: 11.4 x 9.6 x 4.0 Centimeters
Weigh: 436 Grams