Polished fossil stromatolite slab. Asperia ashburtonia. ASP158 ashburton agate Dimensions at widest points are

Dimensions at widest points are approximately 80 mm x 70 mm x 35 mm

EPI89   Epidote

Very unusual piece of Chrysoprase grading to a central core of whitish Chalcedony

Dimensions at widest points approximately 100 mm x 70 mm x 70 mm thick

It weighs 196 grams

Polished fossil stromatolite slab. Asperia ashburtonia. ASP158 ashburton agate Dimensions at widest points areASP158. Fossil stromatolite slab, polished on one side. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Dimensions at widest points approx. 215 mm x 100 mm x 8 mm thick. It weighs 432 grams.