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Hölzel Systematik

9 Silikate

9.B Gruppensilikate (Sorosilikate)

9.BB Melilit-Gruppe

9.BB.1 Melilit-Gruppe

Gugiait Ca2BeSi2O7 tetragonal P421m 42m 9.BB.100
Hardystonit Ca2ZnSi2O7 tetragonal P421m 42m 9.BB.120
Åkermanit Ca2MgSi2O7 tetragonal P421m 42m 9.BB.140
Alumoåkermanit (Ca,Na)2(Al,Mg,Fe2+)(Si2O7) tetragonal P421m 42m 9.BB.150
Gehlenit Ca2Al(AlSi)O7 tetragonal P421m 42m 9.BB.160
Okayamalith Ca2B[BSiO7] tetragonal P421m 42m 9.BB.170

9.BB.2

Meliphanit Ca4(Na,Ca)4Be4AlSi7O24(F,O)4 tetragonal I4 4 9.BB.200
Jeffreyit (Ca,Na)2(Be,Al)Si2(O,OH)7 orthorhombisch C2221 222 9.BB.220
Leukophan NaCaBeSi2O6F orthorhombisch P212121 222 9.BB.240

9.BB.3

Barysilit Pb8Mn(Si2O7)3 trigonal R3c 3m 9.BB.300

9.BB.4

Barylith BaBe2Si2O7 orthorhombisch Pn21a mm2 9.BB.400
Barylit-1O BaBe2[Si2O7] orthorhombisch Pmn21 mm2 9.BB.410
Scottyit BaCu2Si2O7 orthorhombisch Pnma mmm 9.BB.430
Andrémeyerit BaFe(Fe2+,Mn,Mg)Si2O7 monoklin P21/c 2/m 9.BB.440

9.BB.5

Rankinit Ca3Si2O7 monoklin P21/a 2/m 9.BB.500
Edgarbaileyit Hg61+Si2O7 monoklin C2/m, Cm, C2 2/m, m, 2 9.BB.510
Kristiansenit Ca2Sc,Sn4+[Si2O6(OH)|Si2O7] triklin C1 1 9.BB.540
Khibinskit K2ZrSi2O7 monoklin C2, Cm, C2/m 2, m, 2/m 9.BB.560
Gittinsit CaZrSi2O7 monoklin C2 2 9.BB.580

9.BB.6

Keldyshit Na2-xHxZrSi2O7·n H2O triklin P1 1 9.BB.600
Parakeldyshit Na2ZrSi2O7 triklin P1 1 9.BB.610



Mineralsystematik-Übersicht