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Håkestad quarry, Håkestad, Tjølling, Larvik, Vestfold, Norway

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Larvikite quarry, still operating. The most interesting part of the quarry is now filled by water.



References:
- Hansen, R. (1981): Mineralnotater. NAGS-nytt 8 (4),18

- Larsen, A. O. (1988): Helvite group minerals from syenite pegmatites in the Oslo Region, Norway. Contribution to the mineralogy of Norway no 68. Norsk Geologisk Tidsskrift 68: 119-124 [with an analysis of helvite from Håkestad]

- Engvoldsen, T., Andersen, F., Berge, S.A. & Burvald, I. (1991): Pegmatittmineraler fra Larvik ringkompleks. STEIN 18 (1), 15-71

- Larsen, A.O. (2001): Chemical composition of catapleiites from the syenite pegmatites in the Larvik plutonic complex, Norway. Bergverksmuseets Skrift 18, 5-9 [with an analysis of catapleiite from Håkestad]

- Nordrum, F.S. (2001): Noen funn av mineraler i Norge 2000-2001. STEIN 28 (2): 13- 19

- Larsen, A. O. (2002): Zeolitter fra syenittpegmatittene i Oslofeltet. Bergverksmuseets Skrift 20, 60-65 [with analysis of heulandite-Ca]

- Nordrum, F. S. (2003): Nyfunn av mineraler i Norge 2002-2003. STEIN 30 (2), 4-10




Group 2 - Sulphides and Sulfosalts
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Group 4 - Oxides and Hydroxides
  		• Böhmite4.FE.15
    AlO(OH)
  		• Columbite-(Fe)4.DB.35
    FeNb
     
    2
    		O
     
    6
  		• Diaspore4.FD.10
    AlO(OH)
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Microlite4.DH.15
    (Ca,Na)
     
    2
    		Ta
     
    2
    		O
     
    6
    		(O,OH,F)
  		• Pyrochlore4.DH.15
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
  		• Zirconolite
    var: Polymignite    		4.DH.30
    (Ca,Fe,Y,Th)(Nb,Ti,Ta,Zr)O
     
    4
    Group 5 - Nitrates and Carbonates
  		• Bastnäsite-(Ce)5.BD.20a
    (Ce,La)[F|CO
     
    3
    		]
  		• Calcite5.AB.05
    CaCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Wulfenite7.GA.05
    Pb[MoO
     
    4
    		]
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Group 9 - Silicates
  		• Aegirine9.DA.25
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Analcime9.GB.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
  		• Apophyllite-(KF)9.EA.15
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
  		• Bertrandite9.BD.05
    Be
     
    4
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
  		• Biotite9..
  		• Britholite-(Ce)9.AH.25
    Ca
     
    2
    		(Ce,Ca)
     
    3
    		[(OH,F)|(SiO
     
    4
    		,PO
     
    4
    		)
     
    3
    		]
  		• Catapleiite9.CA.15
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
  		• Chamosite9.EC.55
    (Fe
    2+
     
    		,Mg)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Datolite9.AJ.20
    CaB[OH|SiO
     
    4
    		]
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Gadolinite-(Ce)9.AJ.20
    (Ce,La,Nd,Y)
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
  		• Gonnardite9.GA.05
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
  		• Helvite9.FB.10
    Mn
    2+
    4
    		Be
     
    3
    		[S|(SiO
     
    4
    		)
     
    3
    		]
  		• Heulandite-Ca9.GE.05
    (Ca,Na)
     
    2-3
    		Al
     
    3
    		(Al,Si)
     
    2
    		Si
     
    13
    		O
     
    36
    		·12H
     
    2
    		O
  		• Meliphanite9.DP.05
    (Ca,Na)
     
    2
    		(Be,Al)[Si
     
    2
    		O
     
    6
    		(OH,F)]
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Natrolite9.GA.05
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
  		• Nepheline9.FA.05
    (Na,K)[AlSiO
     
    4
    		]
  		• Pectolite9.DG.05
    NaCa
     
    2
    		[HSi
     
    3
    		O
     
    9
    		]
  		• Prehnite9.DP.20
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Chlorite Group'-
  		• 'Garnet Group'-
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
  		• 'Perthite
    var: Cryptoperthite'    		-
  		• 'Thomsonite'-


    40 entries listed. 35 valid minerals.

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