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

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

TIR179 Tiger Iron rough rock

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

Weighs 130 grams

TI271   Tiger Iron slab

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.