Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite Size: 85 x 65 x

Size: 85 x 65 x 60 mm

If you have a 365nm long wave lamp

365nm long no wave UV light to see the inclusions

This titanite displays a distinctive flattened

Fluorescent and phosphorescent (there is a glow that remains briefly after the UV light is removed) with long wave

Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite Size: 85 x 65 xYou 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