Artroeite, from Monte Somma, Vesuvius, Campania, Italy — Photo: David Hospital - www.purple-sky-minerals.com · CC BY-SA 3.0
Artroeite
A lead-aluminium fluoride found in Arizona, named for American chemist Arthur Roe.
Intro adapted from Wikipedia (CC BY-SA).
Artroeite is an IMA-recognized mineral species in the halide class, with the chemical formula PbAlF₃(OH)₂.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: Mohs hardness 2.5; specific gravity 5.36; White streak; Vitreous luster; optically biaxial.
IMA symbol Ate, IMA status: approved, named in 1993.
Found in the oxidized zone of an epithermal Cu–Pb–Ag deposit.
It is found associated with Calcioaravaipaite, quartz, anglesite, fluorite, galena, linarite, muscovite.
The mineral was named to honor Dr. Arthur Roe (1912–1993), American chemist and collector of microscopic minerals, Tucson, Arizona, USA.