Murakamiite
Murakamiite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₂LiSi₃O₈(OH).
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Pectolite structural group.
Key properties: Mohs hardness 4.5–5; specific gravity 2.86; White streak; Vitreous to silky luster; optically biaxial.
IMA symbol Mkm, IMA status: approved, named in 2016.
Found in a metasomatic aegirine-augite albitite.
It is found associated with Aegirine-augite, pectolite, sugilite, albite.
The mineral was named to honor Professor Emeritus Nobuhide Murakami (1923-1994) Department of Geology and Mineralogical Sciences, Faculty of Science, Yamaguchi University.
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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