Polished Tiger Iron display specimen TI338 quartz These small branching columnar stromatolites

These small branching columnar stromatolites are from the “Mount Leake Sandstone”

Very rare colours in this one

Kaolinite has unusual reddish hue in this piece

Dimensions at widest points approximately 160 mm x 90 mm x 90 mm thick

Dimensions at widest points approximately 140 mm x 95 mm x 8 mm thick

Polished Tiger Iron display specimen TI338 quartz These small branching columnar stromatolitesTI338 Tiger Iron rough rock, cut and polished on one side with a rough natural back and a cut base to stand as a display specimen. Dimensions at widest points approximately 165 mm x 130 mm x 80 mm thick. Weighs: 3,825 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