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OpenStudy (anonymous):
More Science Review!! When you write with naturally occurring chalk, you're crushing and smearing what? Which mineral has the greatest hardness after diamond? A hardness of 3 on the hardness scale is___ @Jonaho
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OpenStudy (anonymous):
@Jonaho
OpenStudy (anonymous):
@Jonaho
OpenStudy (jonaho):
When you write with naturally occurring. chalk, you're crushing and smearing the calcite-shell remains of. once-living ocean organisms ============================================================ wurtzite boron nitride ======================================================= Gypsum
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