Crystal Structure of Alunite

Id9014708
Mineral nameAlunite
a (Å)6.9935
b (Å)6.9935
c (Å)17.640
α (°)90
β (°)90
γ (°)120
V (Å3)747.168
Space groupR -3 m :H
Publication: Mineralogical Magazine (2012) 76, 613-623