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30 samples matching your criteria
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Sample n°6132 : geode with small white-pink crystals in trachyte (7 cm)Minerals: FLUORAPOPHYLLITEYear:Country: Czech Republic
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Sample n°6785 : group of diverging prismatic crystals (7 cm)Minerals: ARAGONITEYear: 1954Country: Czech Republic
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Sample n°6847 : geode with analcime crystals (5 mm) in black rock (6 cm)Minerals: ANALCIMEYear: 1954Country: Czech Republic
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Sample n°6895 : black crystals (cm) in brown altered block, and isolated crystals (3 cm)Minerals: HORNBLENDEYear: 1954Country: Czech Republic
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Sample n°6897 : crystalline block (7 cm)Minerals: BIOTITE QUARTZYear: 1954Country: Czech Republic
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Sample n°6898 : blocks of stacked tabular crystals (2 cm), var. zinnwalditeMinerals: SIDEROPHYLLITE POLYLITHIONITEYear: 1954Country: Czech Republic
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Sample n°10242 : geodes with white crystals in marienbergiteMinerals: FLUORAPOPHYLLITEYear:Country: Czech Republic
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Sample n°10243 : geodes with white fibrous radial aggregates in block of marienbergite (15 cm)Minerals: NATROLITEYear: 1964Country: Czech Republic
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Sample n°11558 : red round crystals (5 mm) in brownish jasperMinerals: PYROPE QUARTZYear: 1954Country: Czech Republic
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Sample n°11778 : bright metallic molybdenite (cm) on vein quartzMinerals: MOLYBDENITEYear: 1978Country: Czech Republic