Tisbury Starstone Freeform Cabochon | 4.2cm | UK Stellar Beam Calcite this one-of-a-kind specimen captures the

this one-of-a-kind specimen captures the delicate structure of ancient flora in stunning opalised detail

making it a ready-to-display centerpiece

5cm tall cut base Amethyst freeform has a beautifully cave like shape with a strong natural presence

Hollandite is a fascinating and rare manganese oxide mineral

Tisbury Starstone Freeform Cabochon | 4.2cm | UK Stellar Beam Calcite this one-of-a-kind specimen captures theTisbury Starstone Freeform Cabochon 4. 2cm UK A particularly interesting Tisbury Starstone cabochon from Wiltshire, UK, and one that rewards close looking. The shape is a tapering rectangle one edge wider than the other and the piece has been carved at a slight angle through the coral structure, which means the surface reveals both the classic circular star patterns and the fine feathering effect of the coral's radiating internal structure