Polished Tiger Iron slab TI375 lace agate Dimensions approximately 220mm x 110mm

Dimensions approximately 220mm x 110mm x 6mm thick

It weighs 4

Dimensions at widest points approximately 100 mm x 100 mm x 35 mm thick

DO218  Dendritic Opal rough rock

Dimensions at widest points approximately 185 mm x 90 mm x 65 mm thick

Polished Tiger Iron slab TI375 lace agate Dimensions approximately 220mm x 110mmTI375 Tiger Iron slab, polished on one side. Large, museum quality geological specimen displaying folding ! Dimensions at widest points approximately 330 mm x 260 mm x 18. 5 mm thick. Weighs: 4,274 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