US$ 107.50
U112 Unakite rough rock
CH418 Chrysoprase slab polished on one side
IRR 131 Fossil stromatolite slab
100 mm x 90 mm x 50 mm thick
Weighs 690 grams
Polished Tiger Iron TI387 atlantisite U112 Unakite 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.