Spectrolite

Most commonly found as a dull gray-black stone that attains its only charm from a superficial play of colors known as labradorescence, Spectrolite also comes in a spectacular golden yellow transparent form that makes for some stunning gem-quality stones.

Spectrolite is composed of Calcium Sodium Aluminum Silicate [Ca(50-70%) Na(50-30%) (Al, Si)AlSi2 O8] with a Refractive Index of 1.55 - 1.75 and Specific Gravity of 2.70 - 2.74. With a hardness of 6 ­ 6.5 on the Moh’s scale, Spectrolite is a versatile and wearable gem type.

Available in brilliant pastels and deep gold colors Spectrolite makes for a truly outstanding gem perfect for summer wardrobes and anytime the wearer wishes to brighten the mood.

Transparent Spectrolite should be fine, clear and relatively free from inclusions. Shades vary from an almost lime-yellow color to bright canary yellows and golden tones. When looking at gray-black Spectrolite look for an intensity of schiller on the surface when viewed from different angles. This may result in different colors being visible from different angles or even a range of colors all visible at the same time.

Originally discovered in Canada, Spectrolite is also found in China and the Scandinavian Peninsula. As Spectrolite is a relatively rare gem type prices vary widely according to availability and quality.

As Spectrolite is a very personal stone, individual preference is an important factor when considering the value of any individual gem. In general you should go for a color you feel comfortable with. Relatively inexpensive, Spectrolite is ideal for those who like large stones in bright colors.