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MineralsFluoborite

31st Oct 2013 16:17 UTCMichael Scheven

In 1991, we collected at the dumps of the Pöhla-Tellerhäuser mine a white fibrous Mineral associated with Magnetite, which showed creamy white fluorescence under SW-UV.

EDX-Analysis performed by Andreas Massanek/TU Freiberg provided "Fluoborite". Fluoborite/Magnetite-rocks were obviously displacement/alteration products of "Ludwigite" rocks (Note: "Ludwigite" from Pöhla is frequently a pseudomorphosis of a fine admixture of Magnetite, Szaibelyite and Sapphirine after Ludwigite (Frank-Uwe Braun, Jena, personal communication).


The Fluoborite bearing rocks hosted an interesting paragenesis: rough greenish Datholite, Magnetite, minor Nordenskiöldine and Cassiterite

(analytical confirmed by Mirko Martin; Cassiterite identified visually).

31st Oct 2013 16:47 UTCAlfredo Petrov Manager

Thank you for the information, Michael. I have added some of it to the relevant locality page.


As you are a registered and approved Mindat user, you could add this type of data to your favorite locality pages yourself, if you wish to do so.
 
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