A Perfect Staurolite Crystal on Matrix from Russia - 2.4"

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: 6.1 x 4.1 x 2.3 Centimeters
Weigh: 92.8 Grams