Geographic Minerals

Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth. It…

Gypsum is a common sulfate mineral of superb industrial significance, composed of hydrated calcium sulfate (CaSO4 ·2H2O). The chemical difference is that gypsum contains two…

Gypsum is an evaporite mineral most commonly found in layered sedimentary deposits in association with halite, anhydrite, sulfur, calcite, and dolomite. Gypsum (CaSO4.2H2O) is very…

Rock Salt, also known as Halite (/ˈhælaɪt/ or /ˈheɪlaɪt/) is the least processed form of salt. It is a type of salt, the mineral (natural)…

Oolitic Limestone is made up of small spheres called ooiliths that are stuck together by lime mud. They form when calcium carbonate is deposited on…

Micrite is a limestone constituent formed of calcareous particles ranging in diameter up to four μm formed by the recrystallization of lime mud. It is…

Coral Sand is generally light-colored sand (or gravel) which is mostly composed of calcareous fragments of biogenic origin. The term “coral sand” is pretty loosely…

Dolostone (also known as dolomite, dolomite rock or dolomitic rock) is a carbonate sedimentary rock of which more than 50% by weight or by areal…

Conglomerate (/kənˈɡlɒmərɪt/) is a clastic sedimentary rock consisting of rounded fragments greater than 2 millimetres (0.08 inch) in diameter. The rounding of the clasts show…

Arkose (/ˈɑːrkoʊz/) is a type of sandstone (sedimentary rock composed of cemented grains 0.06–2 millimeters (0.0024–0.08 inch) in diameter) containing at least 25% feldspar; primarily…

Coquina (/koʊˈkiːnə/) is a sedimentary rock composed almost entirely of sand-size fossil debris. The fossils are usually mollusk or gastropod shells and shell fragments. Brachiopod,…

Molybdenum (Mo), chemical element, is a silvery-white metal that is ductile and highly resistant to corrosion, and its atomic number 42. It has one of…