Polished Tiger Iron slab TI349 mookarite NJ439 Noreena Jasper slab
Baker’s notes & crumb story
Description
NJ439 Noreena Jasper slab
5 mm thick and weighs 180 grams
DO179 Dendritic Opal rough rock
Dimensions approximately 180 mm x 100 mm x 5 mm thick
Polished Tiger Iron slab TI349 mookarite NJ439 Noreena Jasper slabTI349 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 320 mm x 160 mm x 11 mm thick. Weighs: 1,563 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.