Which of the following is a true statement about minerals?
A) A total of 88 elements occur naturally in the Earth's crust
B) Eight elements make up more than 98% of the crust
C) The composition of a mineral can be expressed as a chemical formula such as SiO2 for quartz
D) Quartz would not have the same chemical formula anywhere else in the universe-its chemical formula is unique to Earth
E) 3500 minerals are known on Earth
Correct Answer:
Verified
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