Respuesta :
Almost all rocks made of minerals, but different rocks contain different mixtures of minerals. Granite, for example, consists of quartz, feldspar, and mica.
Answer:
They are made from Minerals.
Explanation:
Rocks are composed of grains of minerals, which are homogeneous solids formed from a chemical compound arranged in a orderly manner. The aggregate minerals forming the rock are held together by chemical bonds. the types and abundance of minerals in a rock are determined by the manner in which it was formed.
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