Tundrite-(Nd)
Tundrite-(Nd) is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₂Nd₂TiO₂(SiO₄)(CO₃)₂.
It crystallizes in the triclinic crystal system. It is a member of the Tundrite structural group.
Key properties: specific gravity 4.02; optically biaxial.
IMA symbol Tnd-Nd, IMA status: approved, named in 1967.
Found in pegmatite veins in association with layered nepheline syenite.
It is found associated with Microcline, arfvedsonite.
The name refers to its relation to tundrite-(Ce), and its neodymium content.
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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