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Nb-Ta pegmatite field, Currais Novos, Borborema mineral province, Rio Grande do Norte, Brazil

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A series of some 20 columbite pegmatite veins hosted by Proterozoic metasedimentary rocks. The pegmatites occur just south of the national highway BR 226, approximately 20 km before you reach Currais Novos. The subvertical veins reach maximum widths of 4 m and are sporadically mined for their Ta and Nb grades.

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1 entry listed.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Wolfgang Hampel, site visit April 2008.

 
Mineral and/or Locality  
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