Also called Magnesio-Riebeckite, the rare Rhodusite from Russia has blue shades similar to Pietersite. This slab has a polished surface with three cut edges and one natural edge that has a resin coating (to darken the edge to match the polished side). It shows a fibrous pattern in medium to very dark shades of blue and has chatoyancy.

10.5cm x 11.2cm polished surface
between 8 and 11mm thick

9.6oz