Fe0.34Mg1.14Ni0.52O4Si
Nord, A. G.Annersten, H.Filippidis, A.
American Mineralogist (1982) 67, 1206-1211
a=4.762Å b=10.244Å c=5.989Å
α=90° β=90° γ=90°
Fe0.08Mg1.02Ni0.9O4Si
a=4.747Å b=10.193Å c=5.951Å