Rare Hackmanite Small Palmstone (UV + Tenebrescent) acrylic Obsidian or Opalite

Obsidian or Opalite

like feldspar

a unique Jasper sourced from Madagascar

5cm height to the slice

6cm x 16cm x 0

Rare Hackmanite Small Palmstone (UV + Tenebrescent) acrylic Obsidian or OpaliteA polished small palmstone of Hackmanite. A rare stone which is UV reactive and has a unique reaction known as 'Tenebrescence'. Tenebrescence (also known as reversible photochromism) is the rare ability of certain minerals to change color when exposed to light (such as UV rays or sunlight), and then slowly revert to their original color in the dark. This reaction has been captured on camera. The first 2 photos of the darker purple are after being