Purple Aragonite Specimen from Minglanilla, Spain DX3504 UV Caltanissetta Province

Caltanissetta Province

A third mass was discovered in 2004 weighing about 50 kg

Atlantisite Ring Size 7

Blastoids persisted until their extinction at the end of Permian

Hyalite doesn't have the same internal structure of tiny spheres of silicon dioxide that cause precious opals to have brilliant displays of color

Purple Aragonite Specimen from Minglanilla, Spain DX3504 UV Caltanissetta ProvinceThis Spanish aragonite specimen has a lovely purple color in the center of the crystals and fades abruptly to an opaque white at the ends. It is fluorescent, and phosphorescent, under a long wave UV light (shown in the last photo). Aragonite is a mineral that belongs to the carbonate group, and it's known for its distinct crystal structure and beautiful array of colors. Chemically, it's composed of calcium carbonate (CaCO), the same compound found in