Polished Tiger Iron slab TI397 mookalite has now been largely altered

has now been largely altered to hematite

Dimensions at widest points approximately 120 mm x 90 mm x 30 mm thick

Weighs 145 grams

Dimensions approximately 150 mm x 120 mm x 90 mm thick

BM325  Brecciated  Mookaite rock

Polished Tiger Iron slab TI397 mookalite has now been largely alteredTI397 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 200 mm x 140 mm x 7 mm thick. Weighs: 451 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.