Sankt_Andreasberg

    Calcite 
    Skutterudite (little)
    Galena in clay slate
    old mining St. Andreasberg
    Old find from the seventies

    Calcite 
    Galena
    in clay slate
    old mining St. Andreasberg
    Old find from the seventies

    Leafy calcite with fine quartz crystals
    on rhombohedral calcite in slate
    Geolgic Upper Harz

    Leafy calcite with fine quartz crystals
    Halders of Altbergbau St. Andreasberg
    Old find from the seventies

    Calcite with galena, skutterudite and
    Chalcopyrite in slate
    Cobalt arsenic compound with nickel content

    Calcite with galena and skutterudit
    in slate
    Halders of old mining St. Andreasberg

    Needle calcite with malachite in slate
    Size of the crystals 3 - 7 mm
    Malachite as approach and in fine clumps

    Calcite 
    leaves calcite
    in clay slate
    old mining St. Andreasberg
    Old find from the seventies

Needle calcite on rhombohedral calcite
fine undamaged lace in
small cavities
cabinet
St. Andreasberg geol. Upper Harz

    Grown calcite crystals
    and in a small geode
    Malachite in fine clusters
    on slate