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No. SiO2 is the formula for silicon dioxide, also called silica. Silica is a major component of many minerals on earth. The mineral quartz is virtually pure silica. Sand varies in composition, but in most cases the dominant minerals are quartz and various types of feldspar, which are also rich in silica. So silica is the dominant component of most types of sand. However, it is common elsewhere as well, being a major part of many rocks and the main ingredient in most types of glass.

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10y ago

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