Rainbow lattice sunstone

It is an area consisting of dry plains with rocky outcrops that lies in the Harts Range north-east of Alice Springs, Northern Territory, Australia.

[1][3] Initially, the study of this gemstone in 1989 concluded that the inclusions were made up of ilmenite (for the iridescence lattice and black triangles) and hematite (for the orange platelets).

The original source is located at what is now known as the Rainbow Caterpillar Mine, in the Harts Range northeast of Alice Springs in the Northern Territory of Australia.

Specimens of potassium feldspar that display a phenomenon remarkably similar to Rainbow lattice sunstone have been found in the area of Statesville, North Carolina.

[4] This material contains brown and black exsolution platelets of hematite and ilmenite that show thin-film interference colors along the interface with the host feldspar.