Deposits of semiprecious raw[38 from 43] Petrosilex Siliceous, thick, smal- spotted striped. Ore is beaming.
The name, a brief visual description:
Petrosilex
Siliceous, thick, smal- spotted striped. Ore is beaming.
Sample size:
Ore. 12*9*5 cm. 0,936 kg.
Place of sampling:
Tyva Republic