![Arts and Crafts Labradorite Brooch. Arts and Crafts Labradorite Brooch.](https://www.langantiques.com/university/wp-content/uploads/elementor/thumbs/arts-and-crafts-brooch_1_50-1-2226-q88k178880bjnnbipole37yk19cpmlvzicnajnrc08.jpg)
Labradorescence is a play-of-color gem phenomenon that occurs in gem-quality labradorite. The phenomenon results from reflection of light from the layers of thin plates (lamellar) arrangement within the stone. When that arrangement causes polarization the labradorite appears blue.