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Kalkfeld complex, Kalkfeld, Damaraland District, Kunene Region, Namibia

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Carbonatite complex (calcite carbonatites and nephelinites) and quartzite host-rocks.
The quartz crystals of the quartzite show numerous solid microinclusions of halides and carbonates precipitated from pristine hydrous carbonate melts (carbonatite-derived fluid trapped under closed-system conditions).

Ref.:
- American Mineralogist, 1999, Vol. 84, 1117-1125.




Group 3 - Halides
  		• Cryolite3.CB.15
    Na
     
    3
    		[AlF
     
    6
    		]
  		• Fluorite3.AB.25
    CaF
     
    2
  		• Halite3.AA.20
    NaCl
  		• Sylvite3.AA.20
    KCl
    Group 4 - Oxides and Hydroxides
  		• Quartz4.DA.05
    SiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Burbankite5.AC.30
    (Na,Ca)
     
    3
    		(Sr,Ba,Ce)
     
    3
    		(CO
     
    3
    		)
     
    5
  		• Calcite5.AB.05
    CaCO
     
    3
      var: Ferroan Calcite5.AB.05
    (Ca,Fe)CO
     
    3
      var: Manganoan Calcite5.AB.05
    (Ca,Mn)CO
     
    3
  		• Nahcolite5.AA.15
    NaHCO
     
    3
  		• Rouvilleite5.BC.10
    Na
     
    3
    		(Ca,Mn,Fe)
     
    2
    		(CO
     
    3
    		)
     
    3
    		F
    Group 9 - Silicates
  		• Eudialyte9.CO.10
    Na
     
    15
    		Ca
     
    6
    		(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    3
    		Zr
     
    3
    		[Si
     
    25
    		O
     
    73
    		](O,OH,H
     
    2
    		O)
     
    3
    		(OH,Cl)
     
    2
  		• Nepheline9.FA.05
    (Na,K)[AlSiO
     
    4
    		]
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Chlorite Group'-
  		• 'Monazite'-


    16 entries listed. 14 valid minerals.

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