Quartz is often described as a "pure silica" but often comes in a variety of colors. The reason that quartz comes in a variety of colors is?

A. because of the rate at which the magma cools forming the quartz

B. atomic substitution of some of the silica with other elements or metals

C. the atomic charge of the silcia may change resulting in a variety of colors

D. its internal arrangment of atoms

E. all of the above 

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Answer all of the above would be answer the reason is as follows The reason is that quartz va... View the full answer