2.9" White and Teal Aragonite Formation - Pilhuatepec, Mexico
This is a beautiful, 2.9" wide cluster of aragonite crystals with spots of blue-green coloration that can be attributed to copper minerals/impurities. The material was collected from a mine near the small town of Pilhuatepec, Mexico.
Aragonite is a carbonate mineral with the chemical composition of CaCO3. It is a pseudomorph after calcite and varies in colors depending on impurities. It displays a translucent to white color when pure, and when impure can vary between yellow, green, pink, blue and brown. Typically forming in low temperature hydrothermal veins, It is also known to form in hot springs, as precipitates from chemicals in sedimentary rock, and in some cases as crystals in fossilized sea creatures.
Aragonite with Copper
Near Pilhuatepec, Estado de Veracruz-Llave, Mexico
2.9 x 2.4"