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What are the different types of sand?
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The different types of sand include quartz, feldspar, calcite, and mica. Quartz is the most common type of sand found on Earth, and it is composed of silicon dioxide. Feldspar is a mineral that is made up of aluminum, sodium, potassium, and calcium. Calcite is a mineral that is composed of calcium carbonate. Mica is a mineral that is composed of aluminum silicate.