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Carbonate

Hydroxylbastnäsite-(Ce)

Ce(CO₃)(OH)
Hardness4
Crystal systemHexagonal
ClassCarbonate
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Hydroxylbastnäsite-(Ce)

Hydroxylbastnäsite-(Ce) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Ce(CO₃)(OH).

It crystallizes in the hexagonal crystal system (space group P-6). It is a member of the Bastnäsite structural group.

Key properties: Mohs hardness 4; specific gravity 4.745; Vitreous to greasy luster; optically uniaxial.

IMA symbol Hbsn-Ce, IMA status: approved, named in 1964.

Found in calcite–dolomite carbonatite veins in pyroxenite of an alkalic ultramafic complex (Vuoriyarvi complex, Kola Peninsula, Russia); in a vug in perthitic pegmatite (Kamihori, Japan); in veins and lenses in marble (Desmont mine.

It is found associated with Barite, strontianite, ancylite, fluorite, pyrrhotite, pyrite, chalcopyrite, magnetite, anatase, monazite, burbankite, quartz (Vuoriyarvi complex.

The name refers to a member of the bastnäsite group with (OH)1− > F1− and with cerium the dominant rare earth element.

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 H minerals or help write this entry.