Crystal Structure of Alunite

Id9010877
Mineral nameAlunite
a (Å)6.9741
b (Å)6.9741
c (Å)17.190
α (°)90
β (°)90
γ (°)120
V (Å3)724.074
Space groupR -3 m :H
Publication: Physics and Chemistry of Minerals (2006) 33, 567-573