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finnchaga: Chalcopyrite crystal in quartz Orijärvi
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finnchaga: Chalcopyrite anthophyllite and sphalerite
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finnchaga: Old Orijärvi ore sample
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finnchaga: Orijärven kupari-sinkki-lyijy malmi
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finnchaga: Cordierite in Orijärvi ore sample
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finnchaga: "Lepard Skin Chalcopyrite"
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finnchaga: An aggregate of anthophyllite
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finnchaga: Layered formation of pyrrhotite
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finnchaga: Various Orijärvi ore minerals