Chlormagaluminite
Chlormagaluminite is an IMA-recognized mineral species in the halide class, with the chemical formula Mg₄Al₂(OH)₁₂Cl₂(H₂O)₂.
It crystallizes in the hexagonal crystal system. It is a member of the Hydrotalcite structural group.
Key properties: specific gravity 1.98–2.09; Vitreous to pearly on cleavage surfaces luster; optically uniaxial.
IMA symbol Cma, IMA status: approved, named in 1980.
Found in iron-ore skarns in an explosion pipe.
It is found associated with Magnetite, magnesian chlorite.
The name refers to its principal components, CHLORine, MAGnesium, and ALUMINum.
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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