Polished Tiger Iron TI386 peanut MN136 Magneprase rough rock

MN136  Magneprase rough rock

Weighs 804 grams

140 mm x 55 mm  x 8 mm

Dimensions at widest points approximately 150 mm x 75 mm x 85 mm thick

Dimensions at widest points approximately 120 mm x 70 mm x 35 mm thick

Polished Tiger Iron TI386 peanut MN136 Magneprase rough rockTI386 Tiger Iron rough rock, cut and polished on one side with a rough natural back and a cut base to sit as a display specimen. Dimensions at widest points approximately 160 mm x 70 mm x 40 mm thick. Weighs: 1,085 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,