Multiple Choice
Minerals such as mica, quartz, and feldspar ____.
A) can occur only as igneous rocks
B) can occur only as metamorphic rocks
C) can occur as both igneous and metamorphic rocks
D) are useful index minerals for metamorphic rocks that formed from clay-rich rocks
E) all have the same chemical formula
Correct Answer:

Verified
Correct Answer:
Verified
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