Magnesiovesuvianite
Magnesiovesuvianite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ca₁₉Mg(Al₁₁Mg)Si₁₈O₆₉(OH)₉.
It crystallizes in the tetragonal crystal system (space group P4/n). It is a member of the Vesuvianite structural group.
Key properties: Mohs hardness 6; specific gravity 3.3; White streak; Silky luster; optically uniaxial.
IMA symbol Mves, IMA status: approved, named in 2015.
Of hydrothermal origin in cavities in a garnet-bearing rodingite.
It is found associated with Calcite, grossular-andradite, clinochlore.
The prefix indicates a member of the vesuvianite group with Mg2+ dominant in the Y1 site.
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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