Mineralogy Database

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12 samples matching your criteria

  • Sample n°3360 : blue geode in basalt
    Minerals: OPAL
    Year: 1953
    Country: Congo (RDC)
  • Sample n°3362 : earthy black blocks
    Minerals: MANGANESE OXIDES
    Year: 1953
    Country: Congo (RDC)
  • Sample n°3372 : tabular concretion with undulating surface
    Minerals: CALCITE
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5471 : massive pink fluorapatite with conchoidal fracture
    Minerals: FLUORAPATITE
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5472 : bluish reniform geode
    Minerals: OPAL
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5473 : olive-green rock with conchoidal fracture
    Minerals: OPAL
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5474 : prismatic crystals as radial aggregates
    Minerals: CALCITE
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5475 : reniform concretion and coral-like aggregates in basaltic tuff
    Minerals: OPAL
    Year:
    Country: Congo (RDC)
  • Sample n°5476 : brown earthy blocks
    Minerals: PYROLUSITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°5478 : white geodic crust on basalt
    Minerals: CALCITE
    Year: 1954
    Country: Congo (RDC)
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