Deposits of semiprecious raw[39 from 43] Petrosilex Siliceous, thick, smal- spotted massive. Ore is beaming.
The name, a brief visual description:
Petrosilex
Siliceous, thick, smal- spotted massive. Ore is beaming.
Sample size:
Ore. 8*7*3 cm. 0,238 kg.
Place of sampling:
Tyva Republic