Halides

* Definition: Minerals that contain a halogen element (fluorine, chlorine, bromine, iodine, or astatine) combined with a metal.

* Examples:

* Halite (NaCl): Common table salt

* Fluorite (CaF2): Used in steel production and glassmaking

* Sylvite (KCl): Potassium fertilizer

Oxides

* Definition: Minerals containing oxygen combined with one or more metallic elements.

* Examples:

* Hematite (Fe2O3): Red iron ore

* Magnetite (Fe3O4): Magnetic iron ore

* Corundum (Al2O3): Gemstone (ruby and sapphire)

* Quartz (SiO2): Common silica mineral

Sulfates

* Definition: Minerals containing sulfate (SO4) groups.

* Examples:

* Gypsum (CaSO4 · 2H2O): Used in drywall and plaster

* Barite (BaSO4): Used in drilling mud and as a pigment

* Anhydrite (CaSO4): Dehydrated form of gypsum

Sulfides

* Definition: Minerals containing sulfur combined with one or more metallic elements.

* Examples:

* Pyrite (FeS2): "Fool's gold"

* Galena (PbS): Lead ore

* Sphalerite (ZnS): Zinc ore

Carbonates

* Definition: Minerals containing carbonate (CO3) groups.

* Examples:

* Calcite (CaCO3): Major component of limestone and marble

* Dolomite (CaMg(CO3)2): Similar to calcite, but with magnesium

* Malachite (Cu2CO3(OH)2): Green copper mineral

Native Elements

* Definition: Minerals that occur in their pure, uncombined form.

* Examples:

* Gold (Au): Precious metal

* Silver (Ag): Precious metal

* Copper (Cu): Metal used in wiring and plumbing

* Diamond (C): Hardest known natural mineral

* Graphite (C): Soft, black mineral used in pencils

Let me know if you'd like more details about any specific mineral class or individual mineral!