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Which statement is true for all minerals?

They are made of silicon and oxygen.


They are too hard to be scratched with a nail.


They contain useful metals.


They have a crystalline structure.

User Sleek Geek
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2 Answers

4 votes

Answer: A. They have a crystalline structure

User GeorgeBarker
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Correct option - They have a crystalline structure.

User Phoku
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