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Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway

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(Østskogen larvikittbrudd, Tvedalen, Larvik, Vestfold, Norge)

Larvikite quarry in the south-eastern part of Tvedalen area.



References:
Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26





Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Analcime
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
    Site Photo
    Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
    © Ingulv Burvald
  		•  Annite
    KFe
    2+
    3
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Apophyllite-(KF)
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Böhmite
    AlO(OH)
    Reference: [Collection of Peter Andresen.]
  		•  Britholite-(Ce)
    Ca
     
    2
    		(Ce,Ca)
     
    3
    		[(OH,F)|(SiO
     
    4
    		,PO
     
    4
    		)
     
    3
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Collection of Peter Andresen.]
  		•  Cancrinite
    Na
     
    6
    		Ca
     
    2
    		[(CO
     
    3
    		)
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		] · 2H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Catapleiite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Epididymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    Reference: [Collection of Peter Andresen/ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26.]
    Site Photo
    Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
    © A. Michalsen
  		•  Eudidymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    Reference: [Collection of Alf Olav Larsen.]
    Site Photo
    Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
    © OT. Ljostad
  		•  Fluorite
    CaF
     
    2
    Reference: [Collection of Peter Andresen.]
  		•  Gadolinite-(Ce)
    (Ce,La,Nd,Y)
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    Reference: [Collection of Peter Andresen.]
  		•  Gaidonnayite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Description: Nice crystals was found in vugs in March 2006. Analysed with XRD by Alf Olav Larsen.
    Reference: [Collection of Peter Andresen.]
  		•  Galena
    PbS
    Reference: [Collection of Peter Andresen.]
  		•  Gibbsite
    Al(OH)
     
    3
    Reference: [Collection of Peter Andresen.]
  		•  Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Hambergite
    Be
     
    2
    		[O|OH|BO
     
    2
    		]
    Reference: [Collection of Knut Edvard Larsen / Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26.]
  		•  Helvite
    Mn
    2+
    4
    		Be
     
    3
    		[S|(SiO
     
    4
    		)
     
    3
    		]
    Reference: [Collection of Alf Olav Larsen./ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
    Site Photo
    Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
    © Knut Eldjarn
  		•  Heulandite-Ca
    (Ca,Na)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Leucophanite
    NaCaBeSi
     
    2
    		O
     
    6
    		F
    Reference: [Collection of Peter Andresen./ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
    Site Photo
    Østskogen Quarry, Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Collection of Peter Andresen.]
  		•  Marcasite
    FeS
     
    2
    Description: Identified visualy (shape of crystals, paragenesis in low-temperature environment) and chemicaly, by Alf Olav Larsen.
    Reference: [Collection of Peter Andresen./Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26 ]
  		•  Meliphanite
    (Ca,Na)
     
    2
    		(Be,Al)[Si
     
    2
    		O
     
    6
    		(OH,F)]
    Reference: [Collection of Peter Andresen.]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Molybdenite
    MoS
     
    2
    Reference: [Collection of Peter Andresen.]
  		•  Montmorillonite ?
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Neotocite
    (Mn,Fe,Mg)SiO
     
    3
    		·H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
  		•  Prehnite
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
    Reference: [Collection of Peter Andresen.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Collection of Peter Andresen./ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Pyrochlore
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
    Reference: [Collection of Peter Andresen.]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Collection of Peter Andresen./ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    Reference: [Personally collected by Peter Andresen in 2007.]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Description: Small xls was collected in May 2007, growing on analcime together with natrolite. Identified by Alf Olav Larsen.
    Reference: [Collection of Peter Andresen.]
  		•  Tritomite-(Ce) ?
    (Ce,La,Y,Th)
     
    5
    		(Si,B)
     
    3
    		(O,OH,F)
     
    13
    Description: Brown metamict minerals from this quarry, just as elswhere in Tvedalen, is difficult to distinguish, but some of the material from Østskogen quarry, accossiated with meliphanite, is probably tritomite-(Ce).
    Reference: [K.E.Larsen collection]
  		•  Wöhlerite
    NaCa
     
    2
    		(Zr,Nb)[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [Collection of Peter Andresen.]


    42 entries listed. 42 valid minerals.

    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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