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Hoelzel Classification

6 Borates

6.A Monoborates

6.AB BO3, with additional anions - 1(P)+OH, etc.

6.AB.1 With Me~[4] cations
Hambergite Be2BO3(OH) orthorhombisch 6.AB.100
Berborite Be2(BO3)(OH,F)·H2O trigonal 6.AB.140

6.AB.2 With Me~[6] cations
Jeremejevite Al6B5O15(F,OH)3 hexagonal 6.AB.200
Warwickite (Mg,Ti,Fe,Cr,Al)2O(BO3) orthorhombisch 6.AB.230
Yuanfuliite Mg(Fe3+,Al)[O|BO3] orthorhombisch 6.AB.240
Karlite (Mg,Al)6(BO3)3(OH,Cl)4 orthorhombisch 6.AB.270

6.AB.3 Ludwigite-Group (isotypes)
Ludwigite Mg2Fe3+BO5 orthorhombisch 6.AB.300
Azoproite Mg2[(Ti,Mg),Fe3+]O2(BO3) orthorhombisch 6.AB.310
Fredrikssonite Mg2(Mn3+,Fe3+)O2BO3 orthorhombisch 6.AB.320
Vonsenite Fe2+2Fe3+O2(BO3) orthorhombisch 6.AB.330
Bonaccordite Ni2Fe3+BO5 orthorhombisch 6.AB.340

6.AB.4 Pinakiolite-Group (homeotypes)
Magnesiohulsite (Mg,Fe2+)2(Fe3+,Sn4+,Mg)BO5 monoklin 6.AB.400
Hulsite (Fe2+,Mg)2(Fe3+,Sn)BO5 monoklin 6.AB.410
Pinakiolite (Mg,Mn2+)2(Mn3+,Sb3+)BO5 monoklin 6.AB.420
Aluminomagnesiohulsite Mg2(Al,Mg,Sn)O2(BO3) monoklin 6.AB.450

6.AB.5 Orthopinakiolite-Group (homeotypes)
Orthopinakiolite Mg2Mn3+O2(BO3) orthorhombisch 6.AB.500
Chestermanite Mg2(Fe3+,Mg,Al,Sb5+)O2(BO3) orthorhombisch 6.AB.510
Takéuchiite Mg2Mn3+O2(BO3) orthorhombisch 6.AB.520
Blatterite (Mn2+,Mg)35(Mn3+,Fe3+)9Sb55+[O2|BO3]16 orthorhombisch 6.AB.550

6.AB.6 Fluoborite-Group (structurally closely related)
Fluoborite Mg3(BO3)(F,OH)3 hexagonal 6.AB.600
Hydroxylborite Mg3(BO3)(OH)3 hexagonal 6.AB.610
Pertsevite-(F) Mg2[(F,OH)0.5-1|(BO3,SiO4)] orthorhombisch 6.AB.620
Pertsevite-(OH) Mg2(BO3)(OH) orthorhombisch 6.AB.625
Painite CaZrBAl9O18 hexagonal 6.AB.640

6.AB.7 Wightmanite-Group (homeotypes ?)
Wightmanite Mg5(BO3)O(OH)5·2H2O monoklin 6.AB.700
Shabynite Mg5(BO3)(Cl,OH)2(OH)5·4H2O monoklin 6.AB.720

6.AB.8 Gaudefroyite-Sakhaite-Group (heterotypes, homeotypes Sakhaite, Harkerite)
Canavesite Mg2(CO3)(HBO3)·5H2O monoklin 6.AB.800
Sakhaite Ca48Mg16Al(SiO3OH)4(CO3)16(BO3)28 ·(H2O)3(HCl)3 kubisch Fd3m m3m 6.AB.820
Harkerite Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16⋅2(H2O,HCl) trigonal R3m 3m 6.AB.830
Gaudefroyite Ca4Mn3-x3+(BO3)3(CO3)(O,OH)3 hexagonal 6.AB.850
Qilianshanite NaH4[CO3|BO3]·2 H2O monoklin 6.AB.870
Byzantievite Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O) trigonal 6.AB.890



Mineralsystematik-Übersicht