AM_Georgiadesite Formula: Pb4 As Cl4 O4 H Name: Georgiadesite Unit cell: 13.765 7.896 10.804 90.0 102.57 90.0 , V=1146.12 Space group: P121/C1 (14)

Pasero M , Vacchiano D , Mineralogical Magazine , 64 (2000) p.879-884, Crystal structure and revision of the chemical formula of georgiadesite,, Pb4(AsO3)Cl4(OH), Locality: Laurion, Attica, Greece