Crystal Structure of Alunite

Id9016497
Mineral nameAlunite
a (Å)6.9916
b (Å)6.9916
c (Å)17.621
α (°)90
β (°)90
γ (°)120
V (Å3)745.958
Space groupR -3 m :H
Publication: Mineralogical Magazine (2012) 76, 613-623