Polished Tiger Iron slab TI220 axinite SD159 Stromatolitic Dolomite slab

SD159 Stromatolitic Dolomite slab

Dimensions approximately 180 mm x 100 mm x 5 mm thick

Peanut Wood slab

Weighs 256 grams

Dimensions at widest points approximately 100 mm x 60 mm x 45 mm thick

Polished Tiger Iron slab TI220 axinite SD159 Stromatolitic Dolomite slabTI220 Tiger Iron slab, cut and polished on one side. Dimensions at widest points approximately 55 mm x 50 mm wide x 5 mm thick. Weighs: 44 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.