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This stone was found by my uncle in Western Queensland. It’s light brown in colour and smooth. It's very heavy for its size. 780 grams. Pocket knife doesn’t scratch it. many thanks.enter image description hereenter image description here

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closed as off-topic by trond hansen, Fred, Universal_learner, arkaia, Peter Jansson May 21 at 10:44

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  • "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – trond hansen, Fred, Universal_learner, arkaia, Peter Jansson
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  • $\begingroup$ Where in Western Quensland, especially in what kind of area? It makes quite a difference whether you find something in a desert, river, glacier, .... $\endgroup$ – Jan Doggen May 20 at 7:23
  • $\begingroup$ A chert nodule perhaps? Although it’s not easy to tell from the external surface, nor do I have any knowledge of the geology of Queensland. $\endgroup$ – The Garage Chemist May 20 at 19:57