Mohs se hardheidskaal: Verskil tussen weergawes

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Jcwf (besprekings | bydraes)
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Lyn 84:
| align="center" | 12 || Versmelte [[aluminiumoksied]]
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| align="center" | 13 || [[karbied|Silikonkarbied]]
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| align="center" | 14 || [[Boorkarbied]]