Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite it lights up with a

it lights up with a striking fluorescent pink glow

This titanite displays a distinctive flattened

There is a crystal protruding from the center of the crystal

If you have a 365nm long wave lamp

Size: 85 x 65 x 60 mm

Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite it lights up with aYou will receive ONE (1) hackmanite specimen with marble and some may have richterite, from the Kokcha Valley, Kuran Wa Munjan, Badakshan Afghanistan. The specimens have mild tenebrescence. It is fluorescent (glows bright orange under longwave UV light), photochromic tenebrescent (changes to a deeper shade when exposed to sunlight or certain other light sources). You can see the tenebrescence (lighter and darker shades of purple) in the photos. When