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Question
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
Answer
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