Berthiérine

9 Unclassified Strunz SILICATES (Germanates)
 9.E Phyllosilicates
  9.ED Phyllosilicates with kaolinite layers
   9.ED.15 Clinochrysotile? Mg3Si2O5(OH)4
Space Group Cc, C 2/m
Point Group Mono
   9.ED.15 Berthierine (Fe++,Fe+++,Al,Mg)2-3(Si,Al)2O5(OH)4
Space Group Cm
Point Group m
   9.ED.15 Brindleyite (Ni,Mg,Fe++)2Al(SiAl)O5(OH)4
Space Group C 2
Point Group 2
   9.ED.15 Amesite Mg2Al(SiAl)O5(OH)4
Space Group C1
Point Group 1
   9.ED.15 Antigorite (Mg,Fe++)3Si2O5(OH)4
Space Group Cm
Point Group m
   9.ED.15 Caryopilite (Mn++,Mg,Zn,Fe++)3(Si,As)2O510(OH,Cl)4
Space Group Cm or C 2/m
Point Group Mono
   9.ED.15 Fraipontite (Zn,Al)3(Si,Al)2O5(OH)4
Space Group Cm
Point Group m
   9.ED.15 Cronstedtite Fe++2Fe+++(SiFe+++)O5(OH)4
Space Group P 3₁m
Point Group 3m
   9.ED.15 Chrysotile Mg3Si2O5(OH)4
Space Group A2/m
Point Group 2/m
   9.ED.15 Nepouite Ni3Si2O5(OH)4
Space Group Ccm21
Point Group mm2
   9.ED.15 Greenalite (Fe++,Fe+++)2-3Si2O5(OH)4
Space Group Unk
Point Group Mono
   9.ED.15 Kellyite (Mn++,Mg,Al)3(Si,Al)2O5(OH)4
Space Group P 6₃
Point Group 6
   9.ED.15 Lizardite Mg3Si2O5(OH)4
Space Group P1
Point Group 1
   9.ED.15 Orthochrysotile? Mg3Si2O5(OH)4
Space Group Unk
Point Group Ortho
   9.ED.15 Manandonite Li2Al4[(Si2AlB)O10](OH)8
Space Group C1
Point Group 1
   9.ED.15 Pecoraite Ni3Si2O5(OH)4
Space Group C 2/m
Point Group 2/m
   9.ED.15 Parachrysotile? Mg3Si2O5(OH)4
Space Group Unk
Point Group Ortho
   9.ED.15 Maufite? (Mg,Ni)Al4Si3O13•4(H2O) (?)
Space Group Mono ?
Point Group Mono

Phyllosilicates
71. Feuillets d'anneaux à six-membres

71.1.2c.2 Berthierine Fe₂²⁺Al(SiAl)O₅(OH)₄