Fine display specimen of Oco geode from Três Pinheiros. This complete half nodule has a polished surface with the measurement: 70 x 33 mm. Up to 50 mm thick, weight: 100 grams. Inside the geode you find groups of cristalized goethite!
See also nr 037, the other half. I like to sell them as a pair (€ 15,-) Just order both and I'll fix the price later.
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