With the OPALS one differentiates between the EDELOPALEN and the so-called common OPALS.
The large group of COMMON OPALS or OPALITHES includes different varieties that have their own names depending on their appearance, location or composition. So z. B. milk opal, wood opal, dendrite opal, honey opal, chloropal, ………. and and.
The OPALITH presented here is called LIVER – or HONEY OPAL – for whatever reason.
It was found in Mahatsinja – Bekily – Madagascar
This piece would also be useful as an abrasive material.