Polished Tiger Iron slab TI337 rare agate TI331 Tiger Iron rough rock

TI331   Tiger Iron rough rock

One edge slightly unpolished

Dimensions at widest points approximately 175 mm x 100 mm x 6 mm thick

Lovely specimen

160 mm x 110 mm x 10

Polished Tiger Iron slab TI337 rare agate TI331 Tiger Iron rough rockTI337 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 140 mm x 100 mm x 8 mm thick. Weighs: 310 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.