Korundum: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
Tidak ada ringkasan suntingan |
k Bot: Penggantian teks otomatis (- tapi + tetapi) |
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'''Korundum''' (dari [[Bahasa Tamil]]: ''kurundam'') adalah [[kristal]] [[aluminium oksida]] dan merupakan salah satu [[mineral]] pembentuk [[batuan]]. Secara alami mineral ini jernih,
<!--Due to corundum's hardness (pure corundum is defined to have 9.0 Mohs), it is commonly used as an abrasive in machining, from huge machines to sandpaper. Some emery is a mix of corundum and other substances, and the mix is less abrasive, with a lower average Mohs hardness near 8.0.
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