Mineralogy Database

Nickel-Strunz Borates 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 Borates Classification


06.G Heptaborates and other Megaborates

06.GA Tekto-heptaborates

06.GA.05 Boracite Mg3B7O13Cl P ca21 mm2
06.GA.05 Chambersite Mn3B7O13Cl P ca21 mm2
06.GA.05 Ericaite (Fe++,Mg,Mn)3B7O13Cl P ca21 mm2
06.GA.10 Congolite (Fe++,Mg,Mn)3B7O13Cl R 3c 3m
06.GA.10 Trembathite (Mg,Fe++)3B7O13Cl R 3c 3m

06.GB Phyllo-nonborates, etc.

06.GB.05 Studenitsite NaCa2[B9O14(OH)4]•2(H2O) P 21/c 2/m
06.GB.10 Penobsquisite! Ca2Fe++[B9O13(OH)6]Cl•4(H2O) P 21 2
06.GB.15 Preobrazhenskite Mg3B11O15(OH)9 P bcn 2/m 2/m 2/m
06.GB.20 Walkerite! Ca16(Mg,Li,[ ])2[B13O17(OH)12]4Cl6•28(H2O) Pba2 mm2

06.GC Tekto-dodecaborates

06.GC.05 Rhodizite (K,Cs)Al4Be4(B,Be)12O28 P 43m 4 3m
06.GC.05 Londonite! CsAl4Be4(B,Be)12O28 P 43m 4 3m

06.GD Mega-tektoborates

06.GD.05 Ruitenbergite Ca9B26O34(OH)24Cl4•13(H2O) P 21 2
06.GD.05 Pringleite Ca9B26O34(OH)24Cl4•13(H2O) P1 1
06.GD.10 Metaborite HBO2 P 43m 4 3m