Description
All of our Minerals & Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity!
Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. Calcite is a common constituent of sedimentary rocks, limestone in particular, much of which is formed from the shells of dead marine organisms. Approximately 10% of sedimentary rock is limestone.
Blue, from Mexico
