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74 samples matching your criteria
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Sample n°374 : clear prismatic crystals (8 cm) with black inclusionsMinerals: QUARTZ RUTILEYear: 1920Country: Congo (RDC)
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Sample n°1403 : crystal (cm) in vein quartzMinerals: RUTILE QUARTZYear: 1939Country: Congo (RDC)
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Sample n°1800 : typical crystalsMinerals: RUTILEYear:Country: Congo (RDC)
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Sample n°1877 : breccia of blue quartz with other mineralsMinerals: QUARTZ MICA RUTILE ZIRCONYear:Country: Congo (RDC)
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Sample n°1961 : grey crystals (1-3 cm)Minerals: RUTILEYear:Country: Congo (RDC)
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Sample n°1962 : black concentrate (8 mm)Minerals: RUTILEYear:Country: Congo (RDC)
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Sample n°2136 : yellow massive ore, with polished sectionMinerals: PYRITE RUTILE SPHALERITE CHALCOPYRITEYear: 1941Country: Congo (RDC)
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Sample n°2847 : debris of crystalsMinerals: RUTILEYear: 1949Country: Congo (RDC)
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Sample n°4318 : black concentrate, and fragment (2 cm)Minerals: RUTILEYear: 1954Country: Burundi
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Sample n°4319 : grey prismatic crystal (1 cm)Minerals: RUTILEYear: 1954Country: Rwanda