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Rossås (Rosås) 1 Feldspar Quarry, Rossås (Rosås), Iveland, Aust-Agder, Norway

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(Storegruva)

A granite pegmatite quarried for feldspar and located south of the farm Rossås near the lake Stemtjern. The outer zone of the pegmatite is rich in graphic granite.
Bjørlykke locality nr. 14

Ref:
-Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311.





Mineral List:
  		•  'Albite-Anorthite Series'
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Biotite
    Habit: large thin flakes
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Euxenite-(Y) ?
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
    Habit: small nodules without crystal faces
    Description: Listed by Bjørlykke (1934) as euxenite group.
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  'Fergusonite'
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Keiviite-(Y) ?
    (Y,Yb)
     
    2
    		[Si
     
    2
    		O
     
    7
    		]
    Description: It is a high probabality that the metamict mineral that has been described from the pegmatites of Evje-Iveland area as thalenite-(Y), in fact is keiviite-(Y) (ref: Neumann 1985, p 157 + pers. commentary Gunnar Raade 1988)
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  'Monazite'
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Quartz
    SiO
     
    2
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Thalénite-(Y) ?
    Y
     
    3
    		Si
     
    3
    		O
     
    10
    		(OH)
    Description: It is a high probabality that the metamict mineral that has been described from the pegmatites of Evje-Iveland area as thalenite-(Y), in fact is keiviite-(Y) (ref: Neumann 1985, p 157 + pers. commentary Gunnar Raade 1988)
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Xenotime-(Y)
    YPO
     
    4
    Habit: small nodules without crystal faces
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]
  		•  Zircon
    var: Alvite
    Reference: [Bjørlykke, H.( 1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311 ]


    12 entries listed. 7 valid minerals.

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