Polished Tiger Iron slab TI391 #teredo Dimensions at widest points approximately

Dimensions at widest points approximately 110 mm  x 100 mm wide x 6

Studies have shown that these are probably the oldest agates in the world with an age in excess of 2 billion years

Weighs 440 grams

CC147  Chrome chalcedony slab

MC114 Marillana Conglomerate slab

Polished Tiger Iron slab TI391 #teredo Dimensions at widest points approximatelyTI391 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 140 mm x 75 mm x 6. 5 mm thick. Weighs: 178 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 golden tiger eye.