Hydroxykenopyrochlore
Hydroxykenopyrochlore is an IMA-recognized mineral species in the halide class, with the chemical formula ( ,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F).
It crystallizes in the cubic crystal system (space group Fd-3m). It is a member of the Pyrochlore-Pyrochlore structural group.
Key properties: Mohs hardness 4.5; specific gravity 4.36; White streak; Vitreous to sub-adamantine luster.
IMA symbol Hykpcl, IMA status: approved, named in 2017.
Found in Nb-ore from weathered alkaline carbonatite.
It is found associated with Ba-bearing hydrokenopyrochlore, baryte, magnetite.
Prefixes identify a member of the pyrochlore group with dominant hydroxyl ion (OH)– at the Y position and vacancy at the A position.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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