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Definition of Niobophyllite
1. Noun. (minerology) A triclinic brown mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium. ¹
¹ Source: wiktionary.com
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1. Noun. (minerology) A triclinic brown mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium. ¹
¹ Source: wiktionary.com