Primary mineral - fig-shaped mineral
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These minerals are formed during the formation of parent rocks or parent mineral deposits, and are already present in the rocks or mineral deposits when they are formed [Teall: 1888]. In practice, it is often difficult to distinguish between primary minerals and secondary minerals. Source: Asakura Publishing Dictionary of Petrology Information |
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原岩または原鉱床の形成作用によって生成し，岩石または鉱床が生成された時に，すでにその中に含まれていた鉱物［Teall : 1888］．実際にはどこまでが一次鉱物で，どこからが二次鉱物か区別ができない場合が多い． 出典 朝倉書店岩石学辞典について 情報 |
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