Haydeeite Locality: Haydee Mine, Salar Grande, Iquique Province, Tarapacá Region, Chile Blue crystals of the new mineral Haydeeite on light green acicular crystals of Atacamite. Field of view 4 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0
Haydeeite
Haydeeite is an IMA-recognized mineral species in the halide class, with the chemical formula Cu₃Mg(OH)₆Cl₂.
It crystallizes in the hexagonal crystal system (space group P-3m1). It is a member of the Atacamite structural group.
Key properties: Mohs hardness 2; specific gravity 3.27; Bright greenish-blue streak; Vitreous luster; optically uniaxial.
IMA symbol Hyd, IMA status: approved, named in 2006.
The name refers to the Haydee mine, where the first specimens were collected.
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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