A Perfect Staurolite Crystal on Matrix from Russia- 3.6"

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: 9.1 x 6.7 x 2.8 Centimeters
Weigh: 185 Grams