This rare and stunning gem is Rainbow Lattice Sunstone. It was identified at the GIA and declared a new gem variety in 1989.It is a Feldspar with a rare combination. It is mainly Moonstone made up of roughly 75% Orthoclase and 25% Albite.The lattice structure you see also known as the inclusions result from crystalographically oriented ex-solution crystals of Hematite.These inclusions create aventurescense, and Ilmenite which causes the unique lattice effect. When rotate in the sunlight, you will see the aventurescence, adulerescence and the rainbow lattice effect. Location: Rainbow Serpent Mine, Harts Range, Northern Territory, Australia.
