Nioboheftetjernite
Nioboheftetjernite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula ScNbO₄.
It crystallizes in the monoclinic crystal system (space group P2_1/c). It is a member of the Wolframite structural group.
Key properties: Mohs hardness 5.5; specific gravity 5.855; Dark brown to black streak; Submetallic luster.
IMA symbol Nhef, IMA status: approved, named in 2020.
Found in granitic pegmatite.
It is found associated with Rossovskyite, ilmenite, rutile, thortveitite, euxenite-(Y), feldspar, quartz.
The prefix identifies the Nb-analogue of heftetjernite.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
Browse more N minerals or help write this entry.