Mineralogy Database

Nickel-Strunz Silicates Classification

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Minerals Arranged by Nickel-Strunz (Version 10) Classification

The Nickel-Strunz 10th Edition (Pending Publication) Mineralogical Tables by Hugo Strunz and Ernest H. Nickel is based on a digital copy obtained from Jim Ferraiolo. Jim is responsible for the Strunz Classification in Mindat.org and he has generously provided webmineral with an updated copy of the classification numbers. Follow this link for a short discussion on the Nickel-Strunz Classification Number.

Note: Space Group in Red   Point Group in Green.
* - Not IMA Approved.

! - Dana Number Added or Changed.

? - IMA Discredited Mineral Name.

Nickel-Strunz Silicates Classification


09.DA Inosilicates with 2-periodic single chains, Si2O6; pyroxene family

09.DA.05 Akimotoite! (Mg,Fe)SiO3 R 3 3
09.DA.05 Donpeacorite (Mn,Mg)MgSi2O6 P bca 2/m 2/m 2/m
09.DA.05 Enstatite Mg2Si2O6 P bca 2/m 2/m 2/m
09.DA.05 Ferrosilite (Fe++,Mg)2Si2O6 P bca 2/m 2/m 2/m
09.DA.10 Clinoenstatite Mg2Si2O6 P 21/c 2/m
09.DA.10 Clinoferrosilite (Fe++,Mg)2Si2O6 P 21/c 2/m
09.DA.10 Kanoite (Mn++,Mg)2Si2O6 P 21/c 2/m
09.DA.10 Pigeonite (Mg,Fe++,Ca)(Mg,Fe++)Si2O6 P 21/c 2/m
09.DA.15 Davisite! Ca(Sc,Ti+++,Mg,Ti++++)AlSiO6 C 2/c 2/m
09.DA.15 Esseneite CaFe+++AlSiO6 C 2/c 2/m
09.DA.15 Diopside CaMgSi2O6 C 2/c 2/m
09.DA.15 Johannsenite CaMnSi2O6 C 2/c 2/m
09.DA.15 Hedenbergite CaFe++Si2O6 C 2/c 2/m
09.DA.15 Petedunnite Ca(Zn,Mn++,Fe++,Mg)Si2O6 C 2/c 2/m
09.DA.15 Augite (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 C 2/c 2/m
09.DA.20 Aegirine-augite* (Ca,Na)(Mg,Fe++,Fe+++)[Si2O6] C 2/c 2/m
09.DA.20 Omphacite (Ca,Na)(Mg,Fe++,Al)Si2O6 P 2/n 2/m
09.DA.25 Aegirine NaFe+++Si2O6 C 2/c 2/m
09.DA.25 Jadeite Na(Al,Fe+++)Si2O6 C 2/c 2/m
09.DA.25 Kosmochlor NaCr+++Si2O6 C 2/c 2/m
09.DA.25 Jervisite (Na,Ca,Fe++)(Sc,Mg,Fe++)Si2O6 C 2/c 2/m
09.DA.25 Namansilite NaMn+++(Si2O6) C 2/c 2/m
09.DA.25 Natalyite Na(V+++,Cr+++)Si2O6 C 2/c 2/m
09.DA.30 Spodumene LiAlSi2O6 C 2/c 2/m