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A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway

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(A/S Granit larvikittbrudd, Tuften, Tvedalen, Larvik, Vestfold, Norge)

One of the larvikite quarries in Tvedalen and the larvikite complex most rich in minerals. Several larger vugs have occurred in the last years, beside mineral-rich pegmatites.
Owned by the 'A/S Granit' company.



References:
- Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26
- Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20





Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © 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 /Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26.]
  		•  'Ancylite'
    Reference: [Collection of Peter Andresen.]
  		•  Annite
    KFe
    2+
    3
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © A. Michalsen
  		•  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: [Collected by Peter Andresen 2009.]
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Description: Long prismatic crystals to 2,5 cm was found near to a huge vug in Desember 2005. The best sample is now in the collection of Bergverks Museet, Kongsberg.
    Reference: [Collection of Peter Andresen/ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Astrophyllite
    (K,Na)
     
    3
    		(Fe,Mn)
     
    7
    		Ti
     
    2
    		Si
     
    8
    		O
     
    24
    		(O,OH)
     
    7
    Reference: [Collected by Peter Andresen beginning of June 2009.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  Bastnäsite-(Ce)
    (Ce,La)[F|CO
     
    3
    		]
    Habit: Mica/chlorite like habit
    Colour: Brown
    Description: Samples of bastnäsite-(Ce) where found in large masses in calcite to 20-30 cm in diameter, looking like brown calcite, spring 2009. Material was analysed 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]
  		•  Behoite
    Be(OH)
     
    2
    Habit: Sphenoidal, commonly twinned.
    Colour: Colourless to white
    Description: In July 2009 a considerable amount of behoite samples where collected in a pegmatite at level 1. Most crystals are twinned, and crystals up to 4 mm where found. Some crystals are slightly etched.
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Berborite
    Be
     
    2
    		[(OH,F)|BO
     
    3
    		] · H
     
    2
    		O
    Description: In May 2007 a few extremly rich samples of berborite was collected, with up to several hundred millimeter sized crystals on some of the samples. In Desember 2007, berborite was found again, in a larger crystal in "spreustein".
    Reference: [Collection of Alf Olav Larsen and Ingulv Burvald./ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Böhmite
    AlO(OH)
    Reference: [Collection of Peter Andresen.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  Cancrinite
    Na
     
    6
    		Ca
     
    2
    		[(CO
     
    3
    		)
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		] · 2H
     
    2
    		O
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © A. Michalsen
  		•  Cerussite
    PbCO
     
    3
    Habit: Massive
    Colour: White
    Description: Found as alteration crust around galena with minor hydrocerussite. One sample analysed by Alf Olav Larsen.
    Reference: [Collected by Peter Andresen 2009.]
  		•  Chiavennite
    CaMnBe
     
    2
    		Si
     
    5
    		O
     
    13
    		(OH)
     
    2
    		·2H
     
    2
    		O
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  'Chlorite Group'
    Reference: [Collection of Peter Andresen/ Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26 .]
  		•  Epididymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    Reference: [Collection of Knut Eldjarn./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Eudialyte Group
    Description: Large masses of probably several mambers of the eudialyte group was found in Jan. 2008. Most of the material looked very much like ferrokentbrooksite from other localities in the area. Other parts where much lighter, perhaps a kentbrooksite?
    Reference: [Collection of Peter Andresen.]
  		•  Eudidymite
    Na
     
    2
    		Be
     
    2
    		Si
     
    6
    		O
     
    15
    		·H
     
    2
    		O
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Fluorite
    CaF
     
    2
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Gaidonnayite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: [Collected by Roy Kristiansen August 2009.]
  		•  Galena
    PbS
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © A. Michalsen
  		•  Gibbsite
    Al(OH)
     
    3
    Reference: [Collection of Peter Andresen.]
  		•  Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    Reference: [Collected by Peter Andresen August 2009.]
  		•  Hambergite
    Be
     
    2
    		[O|OH|BO
     
    2
    		]
    Reference: [Collection of Peter Andresen /Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  Helvite
    Mn
    2+
    4
    		Be
     
    3
    		[S|(SiO
     
    4
    		)
     
    3
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Hydrocerussite
    Pb
     
    3
    		(CO
     
    3
    		)
     
    2
    		(OH)
     
    2
    Habit: Massive
    Colour: White
    Description: Occures as minor part of masses of cerussite/hydrocerussite round galena. One sample analysed by Alf Olav Larsen.
    Reference: [Collected by Peter Andresen 2009.]
  		•  Leucophanite
    NaCaBeSi
     
    2
    		O
     
    6
    		F
    Reference: [Collected by Peter Andresen beginning of June 2009.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © A. Michalsen
  		•  Litharge
    PbO
    Habit: Massive
    Description: Litharge was found in a pegmatite at level 1, in July 2009. It occur in and around grains of galena. Analysed by Alf Olav Larsen.
    Reference: [Collected by Peter Andresen 2009.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Field observation by Peter Andresen, 2008.]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Collection of Peter Andresen.]
  		•  Molybdenite
    MoS
     
    2
    Reference: [Collection of Peter Andresen.]
  		•  Monazite-(Ce)
    (Ce,La,Nd,Th)PO
     
    4
    Reference: [Collected by Ingulf Burval.]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Habit: Long to short prismatic crystals.
    Colour: Colourless
    Description: Large amounts of excelent crystalgroups have been found in this quarry.
    Reference: [Collection of Peter Andresen.]
  		•  Natrolite
    var: Spreustein
    Reference: [Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Neotocite
    (Mn,Fe,Mg)SiO
     
    3
    		·H
     
    2
    		O
    Reference: [Collection of Peter Andresen./Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20 ]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: [Field observation by Peter Andresen, 2007.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Collection of Peter Andresen.]
  		•  Rhodochrosite
    MnCO
     
    3
    Description: "Crystals" to 4 cm, "frozen" into feldspar, of a pink carbonate, surounded by manganese oxides, was found in Desember 2007. Analyse of this carbonate, done by Alf Olav Larsen gave this result; ca 65% MnCO3, 30% FeCO3 and 5% CaCO3.
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
    © Peter Andresen
  		•  Schorl ?
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Description: Nice micro crystalls of a dark brow to black tourmaline-group mineral was found in the spring of 2007. Schörl is the only tourmaline reported from this area, so this tourmaline is most likely the same.
    Reference: [Collection of Peter Andresen.]
  		•  Sodalite
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
    Reference: [Field observation by Peter Andresen, 2007.]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Collection of Peter Andresen.]
  		•  Sulphur
    S
     
    8
    Reference: [Collection of Svein A. Berge./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Thomsonite-Ca
    NaCa
     
    2
    		[Al
     
    5
    		Si
     
    5
    		O
     
    20
    		] · 6H
     
    2
    		O
    Reference: [Collection of Peter Andresen. /Nordrum, F. S. (2007): Nyfunn av mineraler i Norge 2006-2007. STEIN 34 (2), 14-26]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Wöhlerite
    NaCa
     
    2
    		(Zr,Nb)[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Collection of Peter Andresen.]
    Site Photo
    A/S Granit Quarry, Tuften (Tuften 1 Quarry; Tuften 2 Quarry), Tvedalen, Larvik, Vestfold, Norway
     
  		•  Wulfenite
    Pb[MoO
     
    4
    		]
    Reference: [Collection of Peter Andresen./ Nordrum, F.S. (2008): Nyfunn av mineraler i Norge 2007-2008. STEIN 35 (2), 8-20]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [Collection of Peter Andresen.]


    50 entries listed. 46 valid minerals.

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