Efedoite is a mineral rock that was formed during the early days of the planet Thiaseuris-Ulgan Jeppj's formation. As such they are coalesced via gravitational pull. They are composed of iron and platinum, with the former being the primary elemental compound involved. It has an average metal content of 46%.
Thanks to heavy crystalization, the rock is actually fairly transparent in large areas of the substance, described by scientists as "partially invisible", although this is a misnomer. This "invisibility" makes it a precious stone, and jewelers occasionally craft it into beautiful works of art.
These structures are primarily an icy blue in hue, with large sections transparent in pure examples; though these are only translucent in some gathered minerals that are full of imperfections.