Polished Tiger Iron slab TI392 agate Asperia ashburtonia from the Proterozoic

Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite"

MC124 Marillana Conglomerate slab

It weighs 173 grams

Dimensions at widest points approximately 110 mm x 100 mm x 7 mm thick

135 mm x 90 mm x 35-40 mm thick

Polished Tiger Iron slab TI392 agate Asperia ashburtonia from the ProterozoicTI392 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 125 mm x 10. 5 mm thick. Weighs: 641 grams From the Cleaverville Formation, Ord Ranges near Port Hedland, Western Australia. Age is over 3 billion years. Tiger iron is a banded iron formation (BIF) or jaspilite that has alternating layers of black and brown hematite magnetite, red jasper and chatoyant golden tiger eye.