Define the terms and state one example for each mineral, ore,gangue
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A mineral is, broadly speaking, a solid chemical compound that occurs naturally in pure form. A rock may consist of a single mineral, or may be an aggregate of two or more different minerals, spacially segregated into distinct phases. Examples:salt, coal, iron, ore, shale, and diamonds
An ore is a natural occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit.
Examples: cinnabar (HgS), an ore of mercury, sphalerite (ZnS), an ore of zinc, or cassiterite (SnO2)
Gangue is the oft commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit.
Example:galena, an ore of lead, is usually found in large pieces within its gangue,