Strontianite: Gemstones Information
Strontianite is SrCO3 and a member of the aragonite group, forming typically short to long prismatic crystals of the orthorhombic system with a nearly perfect cleavage in one direction. The colour may be a pale grey or pale green, sometimes pale red or colourless. Strontianite is an uncommon low-temperature hydrothermal mineral formed in veins in limestone. Fine crystals are found at Aschberg, North Rhine-Westphalia,Germany; the occasional small stone may be faceted.