Tumble polished Jelly Bean Jasper JBT103 chalcedony (commonly jaspilitic) which is also

(commonly jaspilitic) which is also intruded by metadoleritic sills

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

From Mooka Creek near the Kennedy Ranges

105 mm x 75 mm x 7 mm thick

Weighs 527 grams

Tumble polished Jelly Bean Jasper JBT103 chalcedony (commonly jaspilitic) which is alsoJBT103. 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.