Verified Answer :

mandamariesm

Kryptonite is a fictional material from Superman so that's for sure your answer 

meerkat18

The question is asking to choose among the following choices that is not an example of a mineral crystal shape, base on my research, I would say that the answer would be letter C. Kryptonite, because it is only a fictional mineral or object in a movie or stories. I hope you are satisfied with my answer

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