Aragonite is a carbonate mineral, one of the two common, naturally occurring, crystal forms of calcium carbonate, CaCO3 (the other form being the mineral calcite). It is formed by biological and physical processes, including precipitation from marine
Cinnamon frog. This species is found from Yala in extreme southern Thailand (Taylor 1962) through Peninsular Malaysia (Berry 1975), Singapore (Lim and Lim 1992), Sumatra (including Siberut in the Mentawai Islands) in Indonesia, northern parts of Born