Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker crystal jewelry the mineral kunzite was named

the mineral kunzite was named after George Frederick Kunz to honor him for confirming that a new purple mineral found in 1902 was a previously unrecognized variety of the mineral spodumene

Comes with a black waxed cord necklace

such as hackmanite

and the size is 78 x 53 x 40 mm

Mangano Calcite from Caspalaca Huraz

Photochromic Sodalite aka Hackmanite Specimen, Fluorescent and Tenebrescent, Color Changes to Darker crystal jewelry the mineral kunzite was namedYou 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