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2 votes
Diamond is _____.

a nonmetallic element

an isotope of silicon

the hardest mineral on the Mohs scale

the only mineral with luster

2 Answers

2 votes
A non metallic element
User Admsyn
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6 votes
Diamonds are not an element becasue diamonds are minerals so I believe that your answer would be C) the hardest mineral on the Mohs Scale. All sorts of crystals contain luster
User Igor Kostin
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