Mineralogy Database

Nickel-Strunz Carbonates 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 Carbonates Classification


05.CA With medium-sized cations

05.CA.05 Nesquehonite Mg(HCO3)(OH)•2(H2O) P 21/n 2/m
05.CA.10 Lansfordite MgCO3•5(H2O) P 21/a 2/m
05.CA.15 Barringtonite MgCO3•2(H2O) P1 or P1 Tri
05.CA.20 Hellyerite NiCO3•6(H2O) C 2/c 2/m