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Columbite-(Fe)
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| Mineral: | Columbite-(Fe): Fe++Nb2O6 | |||||
| Comments: | Dark grains of columbite-(Fe) wtth small brown grains of fluorcarbonates of LREE. Corrected identificaton by Pavel M. Kartashov who analyzed this occurrence of 'chagbaiite'. | |||||
| Location: | Round Top Rhyolite, Hudspeth County, Texas, USA. | |||||
| Scale: | Picture Size 1 mm. | |||||
| Copyright: | © Thomas Witzke | |||||
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