Quartz is composed of __________.
A) silicon and oxygen
B) silicon and iron
C) iron and oxygen
D) silicon and aluminum
Correct Answer:
Verified
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Q20: A mineral that is valued for its
Q21: Ninety-two percent of the Earth's crust is
Q22: Which of the following describes a crystal?
A)
Q24: The basic unit of all silicates is
Q25: Which of the following is not an
Q26: Radon forms by the radioactive decay of
Q27: Which of the following is not a
Q28: Calcite is a/an:
A) silicate mineral.
B) clay mineral.
C)
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