Product By Gem: Spectrolite

Spectrolite exhibits a richer range of colors than labradorite (that shows only tones of blue-grey-green) and high labradorescence.[1][2] Spectrolite was initially a brand name for material mined in Finland, but is sometimes incorrectly used to describe labradorite whenever a richer display of colors is present, regardless of locality: for example, labradorite with the spectrolite play of colors has also reported from Madagascar.[1] The difference between Finnish spectrolite and other labradorites is that crystals of the former have considerably stronger colourfulness than other labradorites, caused by the black base color of spectrolite feldspar; other labradorites have mostly a transparent base color. Spectrolite is often cut as a lapidary cabochon, similar to plain labradorite, to enhance the effect and is used as a gemstone.