Pyrite on Shale Concretion - Yunnan China

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Photo credit: © John Cancalosi / Alamy / Afripics
License: Licensed
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Keywords: art, brittle, close, close-, compound, compounds, concretion, crystal, crystalized, crystalline, crystals, geologic, geological, geology, inorganic, natural, nature, pyrite, sample, samples, science, sciences, scientific, shale, specimen, specimens, spiral