Painite's extreme rarity is due to it containing the chemical elements zirconium and boron, which do not normally associate with each other in nature and don't occur Painite forms elongated, pseudo-orthorhombic transparent deep garnet-red crystals. Pleochroism is ruby-red and pale brownish orange or pale red-orange. Painite was recognized as the rarest gem material on Earth, however many more stones have since been found.together in any other mineral. Ironically, some painite crystals are partly altered to a crust of small pink crystals of the more common ruby.
23 июн 2022
