Polished Tiger Iron slab TI347 beryl CC147 Chrome chalcedony slab

CC147  Chrome chalcedony slab

Dimensions at widest points approximately 245 mm x 200 mm x 13

It occurs in the Proterozoic Mount Bruce Supergroup which is part of the Fortescue Group with an age of approx

Dimensions at widest points approximately 120 mm x 75 mm x 12 mm thick

145 mm x 60 mm x 8

Polished Tiger Iron slab TI347 beryl CC147 Chrome chalcedony slabTI347 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 240 mm x 160 mm x 10 mm thick. Weighs: 962 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.