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finnchaga: Closeup of platy Aris microcline
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finnchaga: Platy microcline in Aris phonolite microcavity
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finnchaga: Nenadkevichite with possible ellingsenite
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finnchaga: Nenadkevichite match within white fibruous mass
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finnchaga: Acicular Aris crystals in transmitted light
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finnchaga: Acicular Aris crystals in reflected XPL light
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finnchaga: B&W photo of acicular Aris crystals in reflected light