Multiple Choice
Light colored silicates have a specific gravity of about 2.7 grams/cm3 are composed primarily of the silica tetrahedra and ________.
A) iron,magnesium,calcium,and sodium
B) aluminum,magnesium,calcium,and iron
C) magnesium,aluminum,sodium,and calcium
D) potassium,calcium,sodium,and aluminum
E) potassium,aluminum,magnesium,and sodium
Correct Answer:

Verified
Correct Answer:
Verified
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