Name: | Niobophyllite Nbp |
IMA Chemistry: | K2NaFe2+7(Nb,Ti)2(Si4O12)2O2(OH)4(O,F) |
Chemistry Elements: | The mineral Niobophyllite contains elements: Potassium (K) Sodium (Na) Iron (Fe) Niobium (Nb) Titanium (Ti) Silicon (Si) Oxygen (O) Hydrogen (H) Fluorine (F) |
Country of Type Locality: | Canada |
Year First Published: | 1964 |
IMA Status: | Approved |
Status Notes: | Nickel E H, Rowland J F, Charette D J (1964) Niobophyllite - the niobium analogue of astrophyllite; a new mineral from Seal Lake, Labrador, The Canadian Mineralogist 8, 40-52 Chemical formula changed from (K,Na)_3_(Fe,Mn)_6.4_(Nb,Ti)_2_(Si,Al)_7.7_(O,OH,F)_31_: Cámara F, Sokolova E, Abdu Y, Hawthorne F C (2010) The crystal structures of niobophyllite, kupletskite-(Cs) and Sn-rich astrophyllite: Revisions to the crystal chemistry of the astrophyllite-group minerals, The Canadian Mineralogist 48, 1-16 |
Structural Group Name: | Astrophyllite-Astrophyllite |
Fleischer's Group Name: | astrophyllite |
Crystal Systems: | triclinic |
Oldest Known Age: | 2500 Million Years Ago |
More Info: | Search Wikipedia: Niobophyllite (Wiki) Search Mindat: Niobophyllite Search Web Mineral DB: Niobophyllite |