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finnchaga: Anisotropic grain with interference colors
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finnchaga: highly colorful grain - zircon?
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finnchaga: Gold concentrate from Finnish Lapland
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finnchaga: Chalcedony Kuttura Lapland
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finnchaga: Full Raman spectra of Vuotso yellowish chalcedony
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finnchaga: Ragged structure 3 in Vuotso chalcedony
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finnchaga: Ragged structure 2 in Vuotso chalcedony
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finnchaga: Ragged structure 1 in Vuotso chalcedony
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finnchaga: Yellowish Fe-coloured area in Vuotso chalcedony
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finnchaga: Ragged structures in Vuotso chalcedony 5
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finnchaga: Chalcedonic Landscape
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finnchaga: Comparison of type locality moganite with other chalcedonies and quartz
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finnchaga: Gold in chalcedony from Finnish Lapland
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finnchaga: Vuotso chalcedony in reflected light
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finnchaga: Vuotso macroquartz vs. moganite-mix
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finnchaga: Let the light rays come forth...
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finnchaga: Results: re-alignment of Raman system
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finnchaga: Structures in Lapland chalcedony
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finnchaga: Lapland Flowers