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Improving Mindat.orgHerderite from Virgem da Lapa = Hydroxylherderite

8th May 2016 10:42 UTCVik Vanrusselt Expert

Hello all,


http://www.mindat.org/photo-456243.html most likely shows Hydroxylherderite.


The only specimen "believed to be" a genuine Herderite comes from Medina (see http://www.mindat.org/locentry-663891.html), the rest is most likely Hydroxylherderite.


The Herderite page itself says that there are 2 Brazilian localities for true Herderite, but only Medina is listed as "certain", so which is the other locality?


The other localities on the Herderite page should be considered "unconfirmed/questionable."


Vik
 
and/or  
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