Fusain ( fusain )

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Fusain ( fusain ) merupakan Komponen batu bara berlapis seperti arang, berwarna hitam, mudah remuk, lunak, mengotori tangan bila dipegang, sering agak berserat, berkilap sutra; biasanya terdapat dalam lapisan batu bara berbentuk lensa-lensa

Cari Istilah Geologi Tambang


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