Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite There is a crystal protruding

There is a crystal protruding from the center of the crystal

Most of the crystals are double terminated and have fluorescent inclusions

Size: 85 x 65 x 60 mm

Size: 60 x 38 x 28 mm

Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker scalenohedral calcite There is a crystal protrudingYou 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