YD103. Fossil stromatolite slab polished on one side.
Yelma digitata from the Proterozoic "Yelma Formation".
Age is approx. 1.7 billion years.
From near Wiluna in Western Australia.
6.5 mm thick. Approx. 115 mm x 110 mm at widest points. 205 grams.
Polished Brecciated Mookaite BM237
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Polished Brecciated Mookaite BM235
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Polished Magnesite MAP132
