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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE

           according to E.H. Nickel & M.C. Nichols (2007), H. Strunz & E.H. Nickel (2001)



3. HALIDES
(Fluorides, Chlorides, Bromides, Iodides)


3.B: Simple Halides, with H2O


3.BA. Simple Halides with H2O, M : X = 1 : 1 and 2 : 3
                          
3.BA.05. Hydrohalite group
 
Hydrohalite NaCl · 2 H2O cub., F-43m     G

 
3.BA.10. Carnallite group
 
Carnallite KMgCl3 · 6 H2O orth., Pbnn ENTDECKUNG G


 
3.BB. Simple Halides with H2O, M : X = 1 : 2
 
3.BB.05. Eriochalcite group
 
Eriochalcite CuCl2 · 2 H2O orth., Pbmn FOTOG

 
3.BB.10. Rokühnite group
 
Rokühnite FeCl2 · 2 H2O mon., C2/m IMA 1979-036

 
3.BB.15. Bischofite group
 
Bischofite MgCl2 · 6 H2O mon., C2/m FOTO ENTDECKUNG G

 
3.BB.20. Nickelbischofite group
 
Nickelbischofite NiCl2 · 6 H2O mon., C2/m FOTOIMA 1978-056

 
3.BB.25. Sinjarite group
 
Sinjarite CaCl2 · 2 H2O tetr. IMA 1979-041

 
3.BB.30. Antarcticite group
 
Antarcticite CaCl2 · 6 H2O trig., P321 IMA 1965-015

 
3.BB.35. Tachyhydrite group
 
Tachyhydrite CaMg2Cl6 · 12 H2O trig., R-3 FOTO ENTDECKUNG G

 
3.BB.40. Ammineite group *
 
Ammineite * CuCl2 · 2 NH3 orth. IMA 2008-032





 
3.BC. Simple Halides with H2O, M : X = 1 : 3
 
3.BC.05. Chloraluminite group
 
Chloraluminite AlCl3 · 6 H2O trig., R-3c G


 
3.BD. Simple Halides with H2O and additional OH
 
3.BD.05. Cadwaladerite group
 
Cadwaladerite Al(OH)2Cl · 4 H2O amorph. or cub. Q

 
3.BD.10. Lesukite group
 
Lesukite Al2(OH)5Cl · 2 H2O cub., Im-3m FOTOIMA 1996-004
unnamed Al5(OH)12Cl3 · 7.5 H2O trig. FOTO-

Unnamed Al5(OH)12Cl3 · 7.5 H2O is a sublimation product from a burning mine dump and will therefore not accepted as a mineral.

 
3.BD.15. Korshunovskite group
 
Korshunovskite Mg2(OH)3Cl · 4 H2O tric., P-1 or P1 FOTOIMA 1980-083

 
3.BD.20. Nepskoeite group
 
Nepskoeite Mg4(OH)7Cl · 6 H2O orth., Pcmm (?) IMA 1996-016

 
3.BD.25. Koenenite group
 
Koenenite [Mg7Al4(OH)22][Na4Mg2Cl12] trig., 2 cells,
R-3m and P-3m1
FOTOG








* new, not in Nickel & Nichols (2009)

in bold: grandfathered, IMA accepted, renamed and redefined (with IMA approval) minerals,
in normal letters: minerals published without IMA approval, questionable minerals, polytypes

G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
GROUP = a name used to designate a group of species
N = Mineral published without approval of the CNMNC
Q = Questionable mineral
H = Hypothetical mineral (synthetic, anthropogenic, etc.)
D = Discredited by the CNMNC
Poly = Polytype

Hydrohalit, Carnallit, Eriochalcit, Rokühnit, Bischofit, Nickelbischofit, Sinjarit, Antarcticit, Tachyhydrit, Chloraluminit, Cadwaladerit, Lesukit, Korshunovskit, Nepskoeit, Koenenit

© Thomas Witzke / Stollentroll (2008-2010)


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