if youre good at science pls help?
2018-01-06 8:11 am
Explain the difference between a rock and a mineral. State the official definition of a mineral, including all the characteristics necessary for a substance to be classified as a mineral.
回答 (1)
2018-01-06 8:39 am
✔ 最佳答案
A mineral is a chemical compound that is normally crystalline and has been formed by geologic (rather than biologic) processes. A mineral may be a "solid solution" with variable chemical composition, such as the olivine group (Mg,Fe)2 SiO4, where the ratio of magnesium to iron could in theory vary from zero to infinity.A rock is a solid object or substance made of one or more mineral compounds.
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