Examlex
-What type of selection is shown in this figure?
Quartz
A hard, crystalline mineral composed of silicon and oxygen atoms, widely used in jewelry and electronics.
Halite
Also known as rock salt, a mineral form of sodium chloride (NaCl) that often occurs in evaporite deposits.
Crystal
A solid material whose atoms are arranged in highly ordered, repeating patterns extending in all three spatial dimensions.
Cleavage
The tendency of a mineral to break along flat planar surfaces as determined by the mineral’s crystal structure, often enhancing its gem quality.
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