The halide mineral group comprises compounds made up by ionic bonding. Minerals such as halite and sylvite are cubic, have simple chemical formulae, and are highly soluble in water. Halides sometimes form as ore minerals, such as chlorargyrite and atacamite.
Halite – NaCl
Sylvite – KCl
Chlorargyrite – AgCl
Atacamite – Cu2Cl(OH)3
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