Strontioruizite
Strontioruizite is an IMA-recognized mineral species in the silicate class, with the chemical formula Sr₂Mn³⁺₂Si₄O₁₁(OH)₄·2H₂O.
It crystallizes in the monoclinic crystal system (space group C2). It is a member of the Ruizite structural group.
Key properties: Mohs hardness 5–5.5; specific gravity 3.2; Very light brown streak; Vitreous luster; optically biaxial.
IMA symbol Srz, IMA status: approved, named in 2017.
On chemically weathered metamorphosed manganese ore.
It is found associated with Sugilite, potassic-magnesio-arfvedsonite, lipuite.
Prefix, strontio, indicates the Sr-dominant analog of ruizite.
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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