Black Moonstone 6-8mm Irregular Cube - 15-16 Inch Galaxy Blue is solid clear Quartz crystals

is solid clear Quartz crystals that get its bluish green color from Actinolite and Chlorite

It also occurs in golden yellows and browns as well as milky white

spessartine

Many stones in the Russian crown jewels from the 17th century which were thought to be rubies are actually red Tourmaline

It is found in rare pallasite meteorites believed to have been formed 4

Black Moonstone 6-8mm Irregular Cube - 15-16 Inch Galaxy Blue is solid clear Quartz crystalsMoonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. It's soft chatoyancy is reminiscent of the moon's light. Metaphysically, Moonstone is said to increase intuition.