07816 - Beautiful Azurite + Malachite Crystals on Carbonate Matrix - Kerrouchen (Morocco) Prionocheilus these stone meteorites were likely

these stone meteorites were likely once part of the crust of a  large asteroid

United States ( Nevada)

Beautiful association of two Cretolamna teeth and one Stephanodus dentary

Mass:help 75

estuary/bay

07816 - Beautiful Azurite + Malachite Crystals on Carbonate Matrix - Kerrouchen (Morocco) Prionocheilus these stone meteorites were likelyAzurite is one of the two basic copper carbonate minerals, the other being bright green malachite. Simple copper carbonate (CuCO3) is not known to exist in nature. Azurite has the formula Cu3(CO3)2(OH)2, with the copper cations linked to two different anions, carbonate and hydroxide. Small crystals of azurite can be produced by rapidly stirring a few drops of copper sulfate solution into a saturated solution of sodium carbonate and allowing the