Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate.

Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon.

Alabaster is a name applied to varieties of two distinct minerals, when used as a material: gypsum (a hydrous sulfate of calcium) and calcite, a carbonate of calcium, also known as onyx-marble, Egyptian alabaster or Oriental alabaster.

Silica Sand is quartz that over time, through the work of water and wind, has been broken down into tiny granules. Silica (SiO2) is the name given to a group of minerals composed solely of silicon and oxygen.

Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is silicon dioxide (SiO2). It is the most abundant mineral found at Earth's surface, and its unique properties make it one of the most useful natural substances.

Salt is a mineral substance composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of ionic salts, salt in its natural form as a crystalline mineral is known as rock salt or halite.

Phosphate is a sedimentary rock which contains high amounts of phosphate bearing minerals. Limestone and mudstones are common phosphate bearing rocks. Phosphate rich sedimentary rocks can occur in dark brown to black beds.

Kaolin is a type of clay found in nature. People use it to make medicine. Kaolin is most commonly used for diarrhea. It is also used for swelling and sores inside the mouth (oral mucositis), to stop bleeding, and other conditions, but there is no good scientific evidence to support most of these uses.