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4126
MineralsFluor-uvite-Uvite Series
4th Apr 2020 16:47 UTCŁukasz Kruszewski Expert
4th Apr 2020 16:56 UTCDavid Von Bargen Manager
4th Apr 2020 17:20 UTCDavid Von Bargen Manager
Uvite (OH-dominant end-member)
Are all those considered just uvite?The locations will have to be manually changed in the locality/mineral table.
4th Apr 2020 17:40 UTCUwe Kolitsch Manager
Uvite mess fixed (I kept "Uvite (OH-dominant end-member)" as a synonym, for the time being at least).
Now we only need a good photo of a reliably analysed specimen.
EDIT: Will add more occurrences reported in the recent tourmaline literature.
4th Apr 2020 19:54 UTCFrank K. Mazdab 🌟 Manager
4th Aug 2020 03:03 UTCjeremiah jahn
magnesite from Brumado. Would it be helpful for me to upload it someplace? Though I really am not sure where as the whole series vs. end-member thing has me a bit confused.
5th Aug 2020 02:24 UTCFrank K. Mazdab 🌟 Manager
Ca-Mg tourmalines from Brumado are either OH-dominant (uvite) or F-dominant (fluor-uvite). Although fluor-uvite is much more abundant at the locality, dealers tend to just traditionally label everything "uvite" (and some tourmalines might not even belong to that series... some dravites are also present there).
Very few specimens destined for the collector market are analyzed, and since tourmalines may be zoned anyway, it might not do a lot of good to bother analyzing everything in any case. It also doesn't help that the IMA originally considered "uvite" as the F-dominant end-member, and later changed their mind and decided the root name should go with the rarer OH-dominant species (so watch out topaz... your days without a "fluor-" prefix are numbered... lol).
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 18, 2024 05:25:45