Bario-orthojoaquinite
Bario-orthojoaquinite is an IMA-recognized mineral species in the silicate class, with the chemical formula Ba₄Fe²⁺₂Ti₂O₂(SiO₃)₈·H₂O.
It crystallizes in the orthorhombic crystal system (space group Ccmm). It is a member of the Joaquinite structural group.
Key properties: Mohs hardness 5.5; specific gravity 3.96; Pale yellow streak; Vitreous luster; optically biaxial.
IMA symbol Bojq, IMA status: approved, named in 1979.
Found in a block of highly fractured basalt subjected to high-pressure metamorphism and serpentinization.
It is found associated with Benitoite, baotite, fresnoite, natrolite.
The name refers to its BARIum content, ORTHOrhombic symmetry, and membership in the joaquinite group.
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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