and metal salts.
:8 MgS + 8 I₂ -> S₈ + 8 MgI₂

Metal derivatives

Aqueous solutions of transition metals cations react with sulfide sources (H₂S, NaHS, Na₂S) to precipitate solid sulfides. Such inorganic sulfides typically have very low solubility in water, and many are related to minerals with the same composition (see below). One famous example

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