Apatite, is a calcium phosphate, and a very rare variety of tourmaline, which was discovered in the 1990’s. The name apatite comes from the word deceiver in Greek, because it is very easily mistaken for other stones, like tourmaline and beryl. With a hardness on the Moh’s scale of only 5, it is rarely faceted as a gemstone, except for collectors. When cut correctly, stones are bright with strong colors. Apatite is opaque, though sometimes transparent. It is a glassy, hexagonal crystal that comes in various sizes and has a vitreous luster.