* Halite (NaCl): This is common table salt.
* Calcite (CaCO3): Found in limestone and marble.
* Gypsum (CaSO4·2H2O): Used in drywall and plaster.
* Hematite (Fe2O3): An iron ore.
* Galena (PbS): A lead ore.
* Gold (Au): A native metal.
* Diamond (C): A pure form of carbon.
Silicates are minerals that contain the silicon-oxygen tetrahedron (SiO4) as their basic building block. They are the most common type of mineral on Earth.
