Polished Tiger Iron TI387 Marra Mamba NJ477 A rough rock

NJ477  A rough rock

MK549   Mookaite

Dimensions at widest points are approximately 160 mm x 75 mm x 60 mm

Approximate dimensions at widest points 160 mm  x 90 mm  x 40 mm thick

330 mm x 130 mm x 130 mm thick & weighs 11

Polished Tiger Iron TI387 Marra Mamba NJ477 A rough rockTI387 Tiger Iron rough rock, cut and polished on one side with a rough natural back. Dimensions at widest points approximately 140 mm x 85 mm x 60 mm thick. Weighs: 810 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.