Batu Oniks ( Onix Marble )

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Batu Oniks ( Onix Marble ) merupakan Jenis batu hias dengan rumus kimia SiO2, kekerasan 3-7, berat jenis 2,5-2,8, warna coklat, kuning muda, kuning tua (lihat oniks)

Cari Istilah Geologi Tambang


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