Mineralogy Database

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1097 samples matching your criteria

  • Sample n°2474 : yellow block with conchoidal fracture
    Minerals: QUARTZ
    Year:
    Country: Unknown
  • Sample n°2477 : green blocks with prominent cleavage (12 cm), var. amazonite
    Minerals: MICROCLINE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2478 : pink block with prominent cleavage (8 cm)
    Minerals: MICROCLINE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2480 : green blocks with prominent cleavage (8 cm), var. amazonite
    Minerals: MICROCLINE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2481 : pink blocks with prominent cleavage (15 cm), with enclosed pink quartz
    Minerals: MICROCLINE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2482 : small geodes in quartzite
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2483 : concretionary geodic block
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2484 : concretionary geodic block
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2489 : black bands (2 cm thick) in vein quartz
    Minerals: CASSITERITE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2491 : scattered crystals in rock matrix, vein of subhedral quartz crystals
    Minerals: CASSITERITE QUARTZ
    Year:
    Country: Congo (RDC)
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