| Orientation: X ≈ [010]; for crystals lying on (001), X´ show an oblique extinction of ~7° relative to [010]. Cell...Association: Cobaltneustädtelite, quartz, preisingerite, “_limonite_”/goethite, mixite, zeunerite, bismutite, bismutoferrite...Other mines with confirmed occurrence in the same district are Siebenschleken, Junge Kalbe, Friedefürst,...and Peter und Paul. Also, from the Friedrich-Wilhelm adit, Friedensgruber vein, near Lichtenberg, Bavaria |
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Krause, Werner, Bernhardt, Heinz-Jürgen, McCammon, Catherine, Effenberger, Herta (2002) Neustädtelite and cobaltneustädtelite, the Fe3+- and Co2+-analogues of medenbachite. American Mineralogist, 87 (5) 726-738 doi:10.2138/am-2002-5-616 |
Journal (article/letter/editorial) |
| Universität Wien, Althanstrasse 14, A-1090 Vienna, Austria 2 ABSTRACT Neustädtelite and cobaltneustädtelite...Friedefürst, and Peter und Paul. All are located within an area of a few square kilometers. The specimens containing...vugs in association with preisingerite, powdery limonite/ goethite, and rarely with mixite, zeunerite,...confirmed in dump material of the Friedrich-Wilhelm adit, Friedensgruber vein, near Lichtenberg, Bavaria...hardness is 4.5. Morphological investigations with an optical two-circle goniometer and with the optical |
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