Mineralogy Database

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4 samples matching your criteria

  • Sample n°8767 : sample with black uraninite veinlets, yellow nodules of canary-yellow boltwoodite scales, yellow-green autunite
    Minerals: BOLTWOODITE URANINITE AUTUNITE QUARTZ
    Year: 1960
    Country: Rwanda
  • Sample n°10596 : sample with fine boltwoodite needles
    Minerals: BOLTWOODITE
    Year: 1964
    Country: USA
  • Sample n°13824 : sample with radial aggregates of acicular boltwoodite crystals, scalenohedral calcite crystals in boltwoodite, brown goethite on calcite
    Minerals: BOLTWOODITE CALCITE GOETHITE
    Year: 1980
    Country: South Africa
  • Sample n°9745 : autunite on quartz, in geode
    Minerals: AUTUNITE BOLTWOODITE URANINITE
    Year: 1962
    Country: Rwanda
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