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Rockeskyller Kopf Mt. (Kyller Kopf Mt.), Rockeskyll, Gerolstein, Eifel Mts, Rhineland-Palatinate, Germany

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(Rockeskyller Kopf (Kyller Kopf), Rockeskyll, Gerolstein, Eifel, Rheinland-Pfalz, Deutschland)

Two quarries in the scoria cone of an ancient volcano. Pyroclastics and lava dykes, consisting of olivine-bearing Nephelinite-Leucitite and Olivine-Melilite-Nephelinite.
Located north and north-east of Rockeskyller Kopf mountain, about 1 km west of Rockeskyll.



References:
- Meyer, W. (1968): Geologie der Eifel. Schweizerbart (Stuttgart)
- Lloyd, F.E., and Bailey, D.K. (1969): Carbonatite in the Tuffs of the West Eifel, Germany. Contributions to Mineralogy and Petrology 23, 136-139.
- Weiß, S. (1990): Mineralfundstellenatlas, Deutschland West. Weise Verlag (Munich)





 Map Reference: 50°15'13"N , 6°40'52"E

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Group 4 - Oxides and Hydroxides
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Perovskite4.CC.30
    CaTiO
     
    3
  		• Pseudobrookite4.CB.15
    Fe
     
    2
    		TiO
     
    5
  		• Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
  		• Tridymite4.DA.10
    SiO
     
    2
    Group 5 - Nitrates and Carbonates
  		• Calcite5.AB.05
    CaCO
     
    3
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Group 9 - Silicates
  		• Albite
    var: Oligoclase    		9.FA.35
    (Na,Ca)[Al(Si,Al)Si
     
    2
    		O
     
    8
    		]
  		• Andradite9.AD.25
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
  		• Augite9.DA.15
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
  		• Biotite9..
  		• Forsterite9.AC.05
    Mg
     
    2
    		[SiO
     
    4
    		]
  		• Gismondine-Ca9.GC.05
    CaAl
     
    2
    		Si
     
    2
    		O
     
    8
    		·4H
     
    2
    		O
  		• Leucite9.GB.05
    KAlSi
     
    2
    		O
     
    6
  		• Nepheline9.FA.05
    (Na,K)[AlSiO
     
    4
    		]
  		• Phlogopite
    var: Barium-Phlogopite    		9.EC.20
    (K,Ba)
     
    1-x
    		Mg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Sanidine9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Sodalite9.FB.10
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
    Unclassified Minerals
  		• Melilite-
    (Ca,Na)
     
    2
    		(Al,Mg,Fe
    2+
     
    		)[(Al,Si)SiO
     
    7
    		]
  		• 'Olivine'-
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]


    23 entries listed. 20 valid minerals.

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