Crystal Structure of Alunite

Id9016102
Mineral nameAlunite
a (Å)6.9749
b (Å)6.9749
c (Å)17.315
α (°)90
β (°)90
γ (°)120
V (Å3)729.506
Space groupR -3 m :H
Publication: Mineralogical Magazine (2012) 76, 613-623