A brown mineral specimen and a green mineral specimen have identical hardness. This means________ .
A) they may or may not be the same mineral, because hardness is only one indicator of mineral identification
B) they are definitely the same mineral, due to having the same hardness
C) they cannot be the same mineral, as they are different colors
D) hardness would not necessarily be useful here, as only metallic minerals have hardness and they may be nonmetallic
Correct Answer:
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