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tetrahedrite n.【礦物】黝銅礦。

tetrahedron

According to the electron probe analyses and other data , some conclusions have been reached as follows : the modes of occurrence of associated silver include minerals of stephanite , bromargyrite , ag - sb - tetrahedrite , electrum etc . , which occur as small grains among or between fe - mn minerals 利用電子探針等測試方法對錳礦石中伴生銀的賦存狀態進行研究,初步查明銀主要是以脆銀礦、溴角銀礦、銀銻黝銅礦、銀金礦等礦物形式存在,呈微小顆粒狀被包裹于鐵錳礦物內或礦物間隙里。