Ghiaraite
Ghiaraite is an IMA-recognized mineral species in the halide class, with the chemical formula CaCl₂·4H₂O.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: specific gravity 1.826; optically biaxial.
IMA symbol Ghi, IMA status: approved, named in 2012.
Found in volcanic ejecta on the surface of a lava flow.
It is found associated with Chlorocalcite (KCaCl3), hematite, sylvite, halite.
The mineral was named to honor Maria Rosaria Ghiara (b. 1948).
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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