Polished Vivianite nodule half VV113 Green Opal Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm x 75 mm x 50 mm thick

Dimensions at widest points approximately 120 mm x 75 mm x 10 mm thick

Dimensions at widest points approximately 135 mm x 70 mm x 30 mm thick

Unusual webbing in this piece with small oxidised cubic pyrite inclusions

It was collected many years ago from a large open cut gold mine at Reedy's near Cue in Western Australia

Polished Vivianite nodule half VV113 Green Opal Dimensions at widest points approximatelyVV113 Vivianite nodule cut in half with face polished. Dimensions at widest points approx. 90 mm x 80 mm x 20 mm. Weight : 219 grams. From Demons Bluff, Anglesea, Victoria. Vivianite is a rare iron phosphate and these nodules are found on the beach, washed up from their source on the ocean floor.