Polished Tiger Iron slab TI355 brecciated BJ121 Polished "Black Jade" A

BJ121 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Dimensions at widest points approximately 115 mm x 105 mm x 90 mm thick

140 mm x 100 mm x 60 mm

TI265   Tiger Iron rough rock

Dimensions at widest points approximately 110 mm x 85 mm x 40 mm thick

Polished Tiger Iron slab TI355 brecciated BJ121 Polished "Black Jade" ATI355 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 260 mm x 170 mm x 12 mm thick. Weighs: 1,504 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.