Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Columbite-(Fe) from
A4 Highway tunnel, Thiemendorf, Görlitz District, Saxony, Germany


Locality type:Tunnel
Classification
Species:Columbite-(Fe)
Formula:Fe2+Nb2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Columbite-(Fe) data
Locality Data:Click here to view A4 Highway tunnel, Thiemendorf, Görlitz District, Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:126658
Long-form Identifier:1:3:126658:0
GUID (UUID V4):0
Nearest other occurrences of Columbite-(Fe)
2.7km (1.7 miles) ⓘSchoorstein Quarry, Thiemendorf, Görlitz District, Saxony, Germany
3.9km (2.4 miles) ⓘRubel Quarry, Königshain, Görlitz District, Saxony, Germany
20.7km (12.9 miles) ⓘSteinberg, Wuischke, Hochkirch, Bautzen District, Saxony, Germany
56.9km (35.4 miles) ⓘJizerská louka, Jizerka, Kořenov, Jablonec nad Nisou District, Liberec Region, Czech Republic
64.4km (40.0 miles) ⓘSzklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
References
Aufschluss 49 (1998) 293-297
 
and/or  
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