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Which statement is true for all minerals? A. They have a crystalline structure. B. They contain useful metals. C. They are made of silicon and oxygen. D. They are too hard to be scratched with a nail.
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3 votes
Which statement is true for all minerals?

A.
They have a crystalline structure.

B.
They contain useful metals.

C.
They are made of silicon and oxygen.

D.
They are too hard to be scratched with a nail.

User OK Sure
by
7.6k points

2 Answers

5 votes
d
C.
They are made of silicon and oxygen
User Vusak
by
7.9k points
4 votes
A. because atoms create crystal structures to form different kind of materials
User Richard Kettelerij
by
7.9k points
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