(Mg,Fe2+)2[SiO3]2
(Fe,Mg,Al)6(Si,Al)4O10(OH)8
9.EC.55
(Ca,Cr)MgSi2O6
CaMgSi2O6
monoklin
9.DA.15
Mg2Si2O6
orthorhombisch
9.DA.05
{X3}[Y2](Z3)φ12
Mg1.6Fe2+0.4(SiO4)
9.AC.05
{Mg3}[Al2](Si3)O12
kubisch
9.AD.25