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Sjåen feldspar quarry (Høgsjåen), Kragerø, Telemark, Norway

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Locality close to Tangen Quarry.
An irregular shaped granite pegmatite body embedded in albite aplite. It is 100 m long and 20-30 m broad.

Refs.:
-Bjørlykke, H.(1937):"Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway" Norsk Geologisk Tidsskrift, 17,1-16.
- Green, J.C.(1956):"Geology of the Storkollen-Blankenberg area, Kragerø, Norway". Norsk Geologisk Tidsskrift 36, 89-140




Group 4 - Oxides and Hydroxides
  		• Betafite4.DH.15
    (Ca,U)
     
    2
    		(Ti,Nb)
     
    2
    		O
     
    6
    		(OH)
  		• Euxenite-(Y)4.DG.05
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Quartz4.DA.05
    SiO
     
    2
    Group 9 - Silicates
  		• Aegirine-augite9.DA.20
    (Na,Ca)(Fe
    3+
     
    		,Fe
    2+
     
    		,Mg,Al)Si
     
    2
    		O
     
    6
  		• Albite
    var: Cleavelandite    		9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Allanite-(Y)9.BG.05
    {CaY}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Titanite
    var: Yttrian Titanite    		9.AG.15
    (Ca,Y)TiSiO
     
    5
  		• Zircon
    var: Alvite    		9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Albite-Anorthite Series'-
  		• 'Apatite'-
  		• 'Tourmaline'-
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z


    13 entries listed. 10 valid minerals.

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