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Gjerstad, Aust-Agder, Norway

StandardDetailedBy ChemistryMineral Photos (2)Site Photos (1)Search GoogleMineral Report for Region

Mineral list contains entries from the region specified including sub-localities


Mineral List:
  		•  Albite
    var: Cleavelandite
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16( p. 14); Neumann (1985, p. 69).]
  		•  'Albite-Anorthite Series'
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  'Apatite'
    Reference: [Collection of Peter Andresen.]
  		•  Apatite-(CaCl)
    Ca
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Neumann (1985, p. 123).]
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Habit: masses up to 20 cm in diameter
    Colour: yellow,green
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16; Neumann (1985, p. 83).]
  		•  Biotite
    Reference: [Collection of Peter Andresen.; Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Clarkeite
    (Na,Ca,Pb)
     
    2
    		U
     
    2
    		(O,OH)
     
    7
    Reference: [A.O. Larsen (1978, pers. com.); Neumann (1985, p. 90).]
  		•  Columbite
    (Fe,Mn)(Nb,Ta)
     
    2
    		O
     
    6
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Curite
    Pb
     
    3+x
    		(H
     
    2
    		O)
     
    2
    		[(UO
     
    2
    		)
     
    4
    		O
     
    4+x
    		(OH)
     
    3-x
    		]
     
    2
    Description: One sample of curite labeled "Fone in Gjerstad" are kept in the collections of British Museum (National History).
    Reference: [Neumann (1985, p. 90). + Kristiansen, R. (2007): Sekundære uranmineraler i Norge. Bergverksmuseets Skrift nr 35: 49-59 (in norwegian)]
    Site Photo
    Fone, Gjerstad, Aust-Agder, Norway
    © Knut Eldjarn
  		•  Euxenite-(Y)
    (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)
     
    2
    		O
     
    6
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Fourmarierite
    PbU
     
    4
    		O
     
    13
    		·4H
     
    2
    		O
    Description: Identifyed at the x-ray laboratory of Mineralogical Museum of Oslo, 1978.
    Reference: [Neumann (1985, p. 89).]
  		•  Fergusonite-(Y)
    YNbO
     
    4
    Description: Bjørlykke describes small fergusonite-(Y) crystals as inclusions in beryl from this locality.
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16; Neumann (1985, p. 83).]
  		•  Fergusonite-(Y)
    var: Risörite
    (Y,Er)(Nb,Ti,Ta)(O,OH)
     
    4
    Reference: [Hauser (1908); Barth (1927c); Neumann (1985, p. 83).]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Graphite
    C
    Reference: [Touret (1968, pp. 9 - 10); Neumann (1985, p. 11).]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Microlite
    (Ca,Na)
     
    2
    		Ta
     
    2
    		O
     
    6
    		(O,OH,F)
    Habit: lenseshaped nodules and ill-defined crystals
    Description: about 1 mm in diameter
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16, p. 14); Neumann (1985, p. 69).]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: []
  		•  Pyrope
    var: Rhodolite
    Reference: [No reference listed]
  		•  Quartz
    SiO
     
    2
    Reference: [Bjørlykke (1937); Neumann (1985, p. 83).]
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Description: Described as "black tourmaline by BJørlykke (1937)
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16; Neumann (1985, p. 83).]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]
  		•  Synchysite-(Ce)
    Ca(Ce,La)[F|(CO
     
    3
    		)
     
    2
    		]
    Description: Occure as powdery fracture-fillings in a mineral possibly being thorogummite.
    Reference: [R. Kristiansen (1974, pers. com.); Neumann (1985, p. 100); R. Werner ("Stein", #4, 1993, p. 224).]
  		•  Thorogummite ?
    (Th,U)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
    Reference: [R. Werner; "Stein", 4, 1993, p. 224.]
  		•  Titanite
    var: Keilhauite
    (CaTi,Al
     
    2
    		,Fe
    3+
    2
    		,Y
    3+
    2
    		)SiO
     
    5
    Reference: []
  		•  Uraninite
    UO
     
    2
    Reference: [Knut Eldjarn]
  		•  Xenotime-(Y)
    YPO
     
    4
    Reference: [Neumann (1961, p. 209 and 1985, p. 115).]
  		•  Zircon
    var: Alvite
    Reference: [Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift 17, 1-16]


    29 entries listed. 18 valid minerals.

    Localities in this Region:
    Norway
     
    • Aust-Agder
      • Gjerstad
        • Brenndalsmo
        • Brokelandsheia

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 24th Nov 2009 05:45:44