Polished Tiger Iron slab TI391 #teredo Diameter of sun approx

Diameter of sun approx

AZ138 Azurite sun mineral specimen

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

CC147  Chrome chalcedony slab

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

Polished Tiger Iron slab TI391 #teredo Diameter of sun approxTI391 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.