A. high melting point
B. hardness
C. octahedral shape
D. durability
Correct Answer: Option B
B. hardness
Explanation
Diamonds are very hard, they are often used as an abrasive.
A. high melting point
B. hardness
C. octahedral shape
D. durability
Correct Answer: Option B
B. hardness
Explanation
Diamonds are very hard, they are often used as an abrasive.
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