Polished Tiger Iron slab TI374 Irregully formation From the "Marra Mamba Iron

From the "Marra Mamba Iron Formation" near Mt

From the Sinclair pegmatite near Norseman

PRT110  Tumble polished Prehnite from Western Australia

Weight 496 grams

Brecciated Pink Opal rough rock

Polished Tiger Iron slab TI374 Irregully formation From the "Marra Mamba IronTI374 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 12 mm thick. Weighs: 2,460 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