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Columbite-(Fe), Microcline
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| Mineral: | Columbite-(Fe): Fe++Nb2O6 Microcline: KAlSi3O8 | |||||
| Comments: | Blocky, dark brown ferrocolumbite on pale greenish blue amazonite (microcline). | |||||
| Location: | Crystal Park, El Paso Co., Colorado, USA. | |||||
| Scale: | 2.5 x 1.5 cm. | |||||
| Copyright: | © Fabre Minerals | |||||
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