This lovely triangle shaped with blue flash semi precious gemstone Spectrolite designer cabochon is 29 mm by 25 mm and 3.5 mm thick.
Please see the video for the full rainbow flash effect.
These are lovely semi precious gemstone Spectrolite cabochons. The designer cabochons are an uninteresting feldspar that, due to minute inclusions, show an interesting display of beautiful iridescence or a flash of rainbow colors when moved around under bright light.
Spectrolite is a high grade variety of Labradorite. The difference between the two is Labradorite is usually a gray color, where Spectrolite is dark gray or black, giving a better background to make the colors pop more. Also Spectrolite cabochons display the whole spectrum of colors-hence the name.
Spectrolite comes from only one location, Finland.