Purple Chalcedony PU120 rock blocks Face is approximately 90mm x

Face is approximately 90mm x 50mm and  9mm thick

Dimensions approximately 160 mm x 80 mm x 8 mm thick

(commonly jaspilitic) which is also intruded by metadoleritic sills

The stromatolite occurs as small digitate columns which are finely laminated

Dimensions at widest points approximately 75 mm x 50 mm x 20 mm thick

Purple Chalcedony PU120 rock blocks Face is approximately 90mm xPU120 Purple Chalcedony rough rock, cut and polished on one side with a natural rough exterior ! Difficult to photograph but is a pleasing lilac colour. Dimensions at widest points approx. 190 mm x 95 mm x 70 mm thick. Weighs 1,194 grams. From the Eastern Goldfields region of Western Australia.