Belovite-(La)
Belovite-(La) is an IMA-recognized mineral species in the phosphate class, with the chemical formula NaLaSr₃(PO₄)₃F.
It crystallizes in the hexagonal crystal system (space group P-3). It is a member of the Apatite structural group.
Key properties: Mohs hardness 5; specific gravity 4.19; Vitreous luster; optically uniaxial.
IMA symbol Blv-La, IMA status: approved, named in 1995.
Found in natrolite veinlets in pegmatites in a differentiated alkalic massif.
It is found associated with Gaidonnayite, gerasimovskite, lamprophyllite, murmanite, aegirine, pectolite, microcline, natrolite.
The name refers to lanthanum dominant over cerium and its relation to belovite-(Ce).
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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