Orthojoaquinite-(Ce)
Orthojoaquinite-(Ce) is an IMA-recognized mineral species in the silicate class, with the chemical formula NaBa₂Fe²⁺Ce₂Ti₂(SiO₃)₈O₂(O,OH)·H₂O.
It crystallizes in the orthorhombic crystal system. It is a member of the Joaquinite structural group.
Key properties: Mohs hardness 5–5.5; specific gravity 3.98; optically biaxial.
IMA symbol Ojq-Ce, IMA status: approved, named in 1979.
Found in a natrolite vein cutting a glaucophane schist inclusion in a serpentinite body (San Benito Co., California, USA).
It is found associated with Joaquinite-(Ce), benitoite, neptunite, natrolite (San Benito Co., California, USA).
The name refers to its ORTHOrhombic symmetry and relation to joaquinite-(Ce).
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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