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Slättåkra (Alseda) quartz quarry, Slättåkra, Alseda, Vetlanda, Småland, Sweden

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(Slättåkra (Alseda) kvartsbrott)

Granite pegmatite from around 1840. Quartz and feldspar quarry, closed in 1920. Feldspar crystals more than 1 m in size and 15 cm large pyrite balls were found. C.W. Blomstrand found Euxenite here.
Earlier called Alseda pegmatite.





Mineral List:
  		•  'Albite-Anorthite Series'
    Reference: [H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997]
  		•  Allanite-(Ce)
    {CaCe}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Allanite-(Y)
    {CaY}{Al
     
    2
    		Fe
    2+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Blomstrand 1878]
  		•  Anatase
    TiO
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Anorthite
    Ca[Al
     
    2
    		Si
     
    2
    		O
     
    8
    		]
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Biotite
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Clinochlore
    var: Ripidolite
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Swedish Nat.Musuem]
  		•  Euxenite-(Y)
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Jarosite
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Reference: [Löfvendahl 1980]
  		•  Leucoxene
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Molybdenite
    MoS
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Shaikh-Persson-Sundberg-Wik: SGU Rep. 50 , 1989]
  		•  Polycrase-(Y)
    (Y,U)(Ti,Nb)
     
    2
    		O
     
    6
    Reference: [Blomstrand 1878]
  		•  Pyrite
    FeS
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Quartz
    SiO
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  'Sericite'
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Thorianite
    ThO
     
    2
    Reference: [H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997]
  		•  Thorogummite
    (Th,U)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
    Reference: [H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Titanite
    var: Yttrian Titanite
    (Ca,Y)TiSiO
     
    5
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Uraninite
    UO
     
    2
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Xenotime-(Y)
    YPO
     
    4
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991]


    30 entries listed. 23 valid minerals.

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