Salts don't belong to a specific mineral group. They are a chemical compound formed by the reaction of an acid and a base, where the hydrogen ion of the acid is replaced by a metal ion or an ammonium ion.

Minerals, on the other hand, are naturally occurring, solid, inorganic substances with a defined chemical composition and a characteristic crystal structure.

While many salts can be minerals, they are not classified as a mineral group themselves. Some examples of mineral salts include:

* Halite (NaCl): Common table salt

* Sylvite (KCl): Potassium chloride

* Gypsum (CaSO4.2H2O): Calcium sulfate dihydrate

* Calcite (CaCO3): Calcium carbonate

Therefore, salts are chemical compounds, and while many salts are minerals, they are not categorized as a separate mineral group.