Corundum with Anorthite and Phlogopite

Rai-Iz (Raiz), Tyumen Oblast  Russia

Specimen size: 9.6 × 7.5 × 6 cm = 3.78” × 2.95” × 2.36”
Main crystal size: 4 × 3.5 cm = 1.57” × 1.38”