Rare Hackmanite Small Palmstone (UV + Tenebrescent) acrylic 5cm height to the slice

5cm height to the slice

sometimes twinned or clustered

like feldspar

A truly spectacular piece for any collector

Rare Hackmanite Small Palmstone (UV + Tenebrescent) acrylic 5cm height to the sliceA 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