maddî Soft
Calcite, Dolomite, Kaolin, Barite, Quartz, Talc, Zircon Sand, Wollastonite, Powder Coal, Calcium Light Carbonate, Mica, Ev eşîr, Attapulgite, Brucite, Afrikaans, Garnet, Magnesite, Andalusite, Pyrophyllite, Qelye Feldspar, Diopside, Rectorite, Diatomite , gypsum, Pearlite hwd.
maddî Hard
Ç, Boron Carbide, White Corundum, Zirconia, cerium Oxide, di tîna bilind Alumina, Silicon Nitride, Boron Nnitride, Brown debestirén Alumina hwd.
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