Polished Tiger Iron slab TI388 rare B217 Black Jasper Conglomerate slab

B217  Black Jasper Conglomerate slab

BM317  Brecciated  Mookaite rock

Dimensions at widest points approximately 100 mm x 100 mm x 9 mm thick

Sometimes it exhibits striking contrasting veins of magnesite

Dimensions at widest point approximately 235 mm x 60 mm x 13 mm

Polished Tiger Iron slab TI388 rare B217 Black Jasper Conglomerate slabTI388 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 150 mm x 100 mm x 7 mm thick. Weighs: 234 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.