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  3 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°434 : plates (0.5 cm) in rounded yellowish quartzMinerals: GOLD QUARTZYear: 1920Country: Congo (RDC)
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        Sample n°438 : rhombododecahedron (3 mm)Minerals: GOLDYear: 1921Country: Congo (RDC)