Feldspar is
A) relatively rare in the earth's crust.
B) the most abundant mineral in the earth's crust.
C) composed of calcium carbonate.
D) composed of silicon dioxide.
Correct Answer:
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Q8: Quartz is
A)a variety of feldspar.
B)a variety of
Q10: A general characteristic of igneous rocks is
A)
Q11: Mica is present in
A)marble.
B)chert.
C)basalt.
D)gneiss.
Q12: An example of a dark, fine-grained volcanic
Q15: The tendency of certain minerals to split
Q15: The two most abundant elements in the
Q16: The light-colored silicate minerals all contain
A) iron.
B)
Q17: Below a thin sedimentary layer, the ocean
Q18: Which one of the following statements concerning
Q19: The clay minerals occur in the form
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