Zeolite - Stilbite Specimen Green Crystals which is rare

which is rare

and at the same time

Ditto - Pink Opalite (manmade)

between 50 and 70 million years ago

Diameter: 55mm (All measurements are approximate)

Zeolite - Stilbite Specimen Green Crystals which is rareWeight: 1. 994kg Measurements: 66mm x 168mm x 166mm (All measurements are approximate) STILBITE A member of the family, stilbite is a sodium calcium hydrous aluminium silicate. This material can form aggregates, tabular crystals, and thin, flattened plates during the crystallisation process. It is frequently discovered in basalt and other volcanic rock, along with apophyllite and heulandite. Although stilbite is typically white, it can also appear to