Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker elestial crystal Pale green / clear tourmaline

Pale green / clear tourmaline crystals and lepidolite mica on feldspar matrix

Size: 65 x 50 x 45 mm

The basalt cavity wall is lined with a thin green layer of celadonite (not exposed in all areas)

less common tabular form of apophyllite with bright clarity and clean geometry

excellent crystal form

Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker elestial crystal Pale green / clear tourmalineYou 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