Polished Tiger Iron display specimen TI314 Nickeloan magnesite DO185 Dendritic Opal slab polished

DO185  Dendritic Opal slab polished on one side

Dimensions at widest points approximately 45 mm x 35 mm x 23 mm thick

CC147  Chrome chalcedony slab

Dimensions at widest points approximately 90 mm x 55 mm x 30 mm thick

Polished Tiger Iron display specimen TI314 Nickeloan magnesite DO185 Dendritic Opal slab polishedTI314 Tiger Iron , a thick slab, polished on one side with a cut base to stand as a display specimen. Dimensions at widest points approximately 240 mm x 140 mm x 55 mm thick. Weighs: 3,771 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