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our "Black Jasper Conglomerate" is a polymictic pebble and cobble conglomerate
DO179 Dendritic Opal rough rock
Dimensions approximately 100 mm x 50 mm x 11 mm thick
Weighs: 102 grams
Dimensions at widest point approximately 135 mm x 125 mm x 10 mm
Polished Tiger Iron slab TI324 Rough rock our "Black Jasper Conglomerate" isTI324 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 170 mm x 110 mm x 5. 8 mm thick. Weighs: 254 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.