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288 samples matching your criteria
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Sample n°1900 : concentrate (8 mm)Minerals: TOURMALINEYear:Country: Congo (RDC)
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Sample n°1902 : tourmalinite fragment (10 cm)Minerals: TOURMALINEYear:Country: Congo (RDC)
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Sample n°1904 : black fibrous block (7 cm)Minerals: TOURMALINEYear:Country: Congo (RDC)
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Sample n°1989 : heterogeneous fragment with green prismatic beryl crystals (var. emerald) and black tourmaline needlesMinerals: BERYL QUARTZ TOURMALINEYear:Country: Congo (RDC)
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Sample n°1990 : brown cassiterite crystals (3 cm), black tourmaline needles, pink prismatic beryl crystals (4 cm)Minerals: CASSITERITE TOURMALINE BERYL QUARTZYear:Country: Congo (RDC)
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Sample n°1991 : tin-bearing tourmaliniteMinerals: TOURMALINE CASSITERITEYear:Country: Congo (RDC)
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Sample n°1994 : debris of black prismatic crystals (2 cm) on quartzMinerals: TOURMALINEYear:Country: Congo (RDC)
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Sample n°2011 : shapeless debrisMinerals: TOURMALINE QUARTZYear:Country: Congo (RDC)
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Sample n°2018 : groups of needles in altered pegmatiteMinerals: TOURMALINE MUSCOVITEYear:Country: Congo (RDC)
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Sample n°2019 : needles in quartz, thick veins in quartziteMinerals: TOURMALINEYear:Country: Congo (RDC)