Also known as: Spectrolite
Formula: (Ca, Na) [Al(AI, Si) SizOg]
Hardness: 6-6.5
Color: Pale green, blue, colourless, grey-white
Named for the Canadian province in which it was first categorized, labradorite is a feldspar mineral notable for its iridescence, which is so unusual that it has spawned an entirely new term: labradorescence. Famed for these spectacular displays of color, this unique mineral is most often used by jewelers who create unusual or custom-made pieces.