FHMgO
Crichton, W. A.Parise, J. B.Muller, H.Breger, J.Marshall, W. G.Welch, M. D.
Mineralogical Magazine (2012) 76, 25-36
a=10.1299Å b=3.0723Å c=4.676Å
α=90° β=90° γ=90°
FHOZn
a=10.2280Å b=3.1125Å c=4.7165Å