Polished Tiger Iron slab TI359 lepidolite OG180 Polished orbicular granite with

OG180   Polished orbicular granite with natural rough back

Weighs:  102 grams

BJ124 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Weighs:  420 grams

Dimensions at widest points approximately 195 mm  x 140 mm x 8 mm thick

Polished Tiger Iron slab TI359 lepidolite OG180 Polished orbicular granite withTI359 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 290 mm x 170 mm x 12. 5 mm thick. Weighs: 1,694 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.