Polished Tiger Iron slab TI388 rare Sometimes it exhibits striking contrasting

Sometimes it exhibits striking contrasting veins of magnesite

Weighs  308 grams

B217  Black Jasper Conglomerate slab

Weighs 295 grams

100 mm x 50 mm x 30 mm thick

Polished Tiger Iron slab TI388 rare Sometimes it exhibits striking contrastingTI388 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 150 mm x 100 mm x 7 mm thick. Weighs: 234 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.