Carbonates are the most broadly distributed minerals in the Earth's covering. The precious stone structure of many carbonates reflects the trigonal symmetry of the carbonate particle that is made out of carbon atom centrally located in an equilateral triangle of oxygen molecules. The anion group frequently is found in combination with sodium, calcium, iron, aluminum, uranium and rare earth minerals among others. The Hydrotalcite is the metal group of Stichtite. The Stichtite was found in ... Read more