These Nertschinsk gem mines started in 1723 are are on three peaks of the Adun-Cholon Mountains: Hoppevskaya Gora (Schorl Mountain), Sherlovaya Gora, Soktuj Gora; and further north near the Urulga River. Most locality attributions are suspect as the gem dealers are not interested. About 3 square Km of the surface is Topaz rock (greissen?). The area is riddled with pits and tunnels to a depth of 8 m. The gem xls are found in the weathered turf as well as pockets.
Mineral List:8 entries listed. 5 valid minerals.
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