Diegogattaite
Diegogattaite is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₂CaCu₂Si₈O₂₀·H₂O.
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: Mohs hardness 5–6; specific gravity 3.1; Very pale blue streak; Vitreous luster; optically biaxial.
IMA symbol Dga, IMA status: approved, named in 2012.
Found in a hydrothermally altered manganese deposit.
It is found associated with Wesselite, aegirine, Cu-rich pectolite, sugilite, quartz, and undifferentiated Fe-Mn oxides, as well as scottyite, lavinskyite, richterite.
The mineral was named to honor Professor Diego Gatta (b. 1974), Department of Earth Sciences, University of Milan, Italy.
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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