Albertiniite
Albertiniite is an IMA-recognized mineral species in the sulfate class, with the chemical formula Fe²⁺(SO₃)·3H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/n).
Key properties: specific gravity 2.458; Vitreous luster; optically biaxial.
IMA symbol Abt, IMA status: approved, named in 2015.
Coating fractures as an intermediate product of oxidation between iron sulfides (pyrite and arsenopyrite) and sulfates.
It is found associated with Stolzite, pyromorphite, hinsdalite, plumbogummite, gibbsite, scheelite, jarosite.
The mineral was named to honor Claudio Albertini, an Italian mineral collector and expert on the systematic mineralogy of the Alps and pegmatites.
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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