Anna adit, Mitterberg District, St Johann im Pongau, Salzburg, Austria

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Annastollen, Revier Mitterberg, Mühlbach am Hochkönig, St Johann im Pongau, Salzburg, Österreich

In the side veins worked by the Anna edit, concentric layered pitchblende nodules to a diameter of several cm, including a suite of sulphides in microscopic quantities, occurred abundantly in vugs of the vein carbonates. Within the Mitterberg district, this type of mineralization - also known as 'UKP' (Uranknollen-Paragenese = uranium nodule paragenesis) - was almost exclusively restricted to this locality. Uranium minerals recovered from other sections are typical secondary formations, deposited by circulating groundwaters.

Located about 2.5 km NE of Mitterberg mountain, in the northeastern Dienten Mts.

Mineral List

Albite Altaite Anatase 'Apatite' Autunite Becquerelite Bournonite Brannerite Calaverite Calcite Chalcopyrite Cinnabar Coloradoite

Covellite Fluorite Fourmarierite Galena Gersdorffite Goethite Gold 'Gold Amalgam' Hessite Magnesite var: Breunnerite var: Mesitine Spar Marcasite Mercury

Meta-autunite Metacinnabar Molybdenite Nickelskutterudite Opal var: Opal-AN Parasymplesite Pharmacosiderite 'Pitticite' Pyrite 'Pyrobitumen var: Thucholite' Pyrrhotite Rammelsbergite Rutile

Scorodite Siderite var: Pistomesite Sphalerite Studtite Tennantite 'Tourmaline' Uraninite var: Pitchblende Uranospinite Zeunerite Zippeite Zircon

51 entries listed. 41 valid minerals.

References