Lithiomarsturite
Lithiomarsturite is an IMA-recognized mineral species in the silicate class, with the chemical formula LiCaMn²⁺₃Si₅O₁₄(OH).
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Rhodonite structural group.
Key properties: Mohs hardness 6; specific gravity 3.32; Very light brown streak; Vitreous luster; optically biaxial.
IMA symbol Lmsr, IMA status: approved, named in 1988.
Found in small vugs within a complex Li-Sn-rich pegmatite.
It is found associated with Tetrawickmanite, brannockite, parsettensite, bavenite, fluorapatite, albite, pyrite.
As the lithium analogue of marsturite.
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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