Tumble polished Jelly Bean Jasper JBT103 chalcedony 105 mm x 75 mm

105 mm x 75 mm x 7 mm thick

Weight 834 grams

Weighs 527 grams

Tiger iron is a banded iron formation (BIF) or jaspilite that has alternating layers of black and brown hematite/magnetite

Dimensions approximately 120mm x 100mm x 9mm thick

Tumble polished Jelly Bean Jasper JBT103 chalcedony 105 mm x 75 mmJBT103. Tumble polished Jelly Bean Jasper or Red Jasper Conglomerate in Hematite rich matrix. Dimensions at widest points approx. 75 mm x 50 mm x 30 mm. thick. Weighs 234 grams. It occurs in a geological unit called the "Mt. McGrath Formation" which has an age of close to 2 billion years. Nearest town is Paraburdoo in the Pilbara region of Western Australia.