Crystal Structure of Natural topaz

Id1544607
Common namenatural topaz
Mineral nametopaz Al2.01Si1.00O4F1.57(OH)0.43
a (Å)4.6489(24)
b (Å)8.7935(39)
c (Å)8.3957(39)
α (°)90
β (°)90
γ (°)90
V (Å3)343.2(3)
Space groupP b n m
Temperature (K)298.15
Publication: Journal of Mineralogical and Petrological Sciences (2003) 98, 167-180