Tag Archives: sapphire info

Pleochroic Sapphire

Posted on September 30, 2011 by mrahm

Like most gemstones, sapphire is doubly refractive and like many doubly refractive stones, it generally shows pleochroism. Pleochroism is an optical phenomenon that is a direct result of double refraction…when a light beam splits and travels in different directions at … Continue reading →

Posted in 9. September Birthstone Tidbits, Gemstone Tidbits | Tagged , , , | Leave a comment