Crystal Structure of Alunite

Id9016445
Mineral nameAlunite
a (Å)6.9859
b (Å)6.9859
c (Å)17.481
α (°)90
β (°)90
γ (°)120
V (Å3)738.825
Space groupR -3 m :H
Publication: Mineralogical Magazine (2012) 76, 613-623