This Vivianite crystals from Brazil selection is a great specimen of this rare Blue Tourmaline. Vivianite is a stunning member of the Elbaite mineral family. Elbaite is an igneous mineral that almost always forms in granite pegmatites. It is a complex lithium-rich borosilicate mineral.
Elbaite usually forms as heavily-striated elongated rods or prismatic crystals. Blue and Green Elbaite crystals are often pleochroic, which means that the crystal appears darker in colour when viewed along its vertical axis, compared to viewing along its horizontal axis.
Location: Afghanistan, Brazil, Madagascar, Namibia, Pakistan, USA
