Suppose you have an unknown mineral sample. You can scratch the mineral with a pen knife but not with your fingernail. The mineral is most likely _____.

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asked Dec 11, 2018 171k views

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Suppose you have an unknown mineral sample. You can scratch the mineral with a pen knife but not with your fingernail. The mineral is most likely _____.

Chemistry
high-school

KoalaZub asked

by KoalaZub

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Are there options to choose from? It could be apatite

Shrikant Soni answered Dec 18, 2018

by Shrikant Soni

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