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Dimensions at widest points approximately 150 mm x 100 mm x 30 mm thick
These small branching columnar stromatolites are from the “Mount Leake Sandstone”
OJ173 A slab
It often contain layers and nodules of red chert
OJ165 A rough rock
Polished Tiger Iron display specimen TI314 Tiger Eye Dimensions at widest points approximatelyTI314 Tiger Iron , a thick slab, polished on one side with a cut base to stand as a display specimen. Dimensions at widest points approximately 240 mm x 140 mm x 55 mm thick. Weighs: 3,771 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
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