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Gunheath China Clay Pit, Stenalees, Hensbarrow Downs, Luxulyan Area (Luxulian Area), St Austell District, Cornwall, England, UK

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Plancheite supposedly collected here in 1958 by Arthur Kinsbury (1906-68) is now considered "very doubtful" and probably from Arizona. This is one of a number of likely or definitely falsified Kingsbury localities.



References:
- Williamson, B.J., Stanley, C.J., and Wilkinson, J.J. (1997): Implications from inclusions in topaz for greisenisation and mineralisation in the Hensbarrow topaz granite, Cornwall, England. Contributions to Mineralogy and Petrology 127, 119-128.
- Elton, N. J. (1998): Barbosalite, frondelite and other phosphates from Gunheath China Clay Pit, St Austell, Cornwall, England. Journal of the Russell Society 7, 15-18.
- Ryback, G., Hart, A.D., and Stanley, C.J. (2001): Journal of the Russell Society 7(2).





 UK OS Grid Reference: SX005571
Map Reference: 50°22'45"N , 4°48'22"W

This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Group 1 - Elements
  		• Copper1.AA.05
    Cu
    Group 2 - Sulphides and Sulfosalts
  		• Arsenopyrite2.EB.20
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
  		• Bismuthinite2.DB.05
    Bi
     
    2
    		S
     
    3
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Covellite2.CA.05a
    CuS
  		• Digenite2.BA.10
    Cu
     
    9
    		S
     
    5
  		• Kuramite2.CB.15a
    Cu
     
    3
    		SnS
     
    4
  		• Mawsonite2.CB.20
    Cu
     
    6
    		Fe
     
    2
    		SnS
     
    8
  		• Stannite2.CB.15a
    Cu
     
    2
    		(Fe,Zn)SnS
     
    4
  		• Stannoidite2.CB.15c
    Cu
    +
    6
    		Cu
    2+
    2
    		(Fe
    2+
     
    		,Zn)
     
    3
    		Sn
     
    2
    		S
     
    12
  		• Tennantite2.GB.05
    (Cu,Ag,Fe,Zn)
     
    12
    		As
     
    4
    		S
     
    13
  		• Wurtzite2.CB.45
    (Zn,Fe)S
    Group 3 - Halides
  		• Connellite3.DA.25
    Cu
     
    19
    		[(OH)
     
    32
    		|SO
     
    4
    		|Cl
     
    4
    		] · 3H
     
    2
    		O
  		• Fluorite3.AB.25
    CaF
     
    2
    Group 4 - Oxides and Hydroxides
  		• Cassiterite4.DB.05
    SnO
     
    2
  		• Corundum4.CB.05
    Al
     
    2
    		O
     
    3
  		• Cuprite4.AA.10
    Cu
     
    2
    		O
      var: Chalcotrichite4.AA.10
    Cu
     
    2
    		O
  		• Ferberite4.DB.30
    FeWO
     
    4
  		• Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
  		• Qitianlingite4.DB.35
    (Fe,Mn)
     
    2
    		(Nb,Ta)
     
    2
    		WO
     
    10
  		• Quartz4.DA.05
    SiO
     
    2
      var: Jasper4.DA.05
    SiO
     
    2
      var: Smoky Quartz4.DA.05
    SiO
     
    2
  		• Rutile
    var: Ilmenorutile    		4.DB.05
    Fe
     
    x
    		(Nb,Ta)
     
    2x
    		·4Ti
     
    1-x
    		O
     
    2
  		• Varlamoffite4.DB.05
    (Sn,Fe)(O,OH)
     
    2
    Group 5 - Nitrates and Carbonates
  		• Azurite5.BA.05
    Cu
     
    3
    		[OH|CO
     
    3
    		]
     
    2
  		• Malachite5.BA.10
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Brochantite7.BB.25
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
  		• Cuprotungstite7.GB.15
    Cu
     
    2
    		[(OH)
     
    2
    		|WO
     
    4
    		]
  		• Scheelite7.GA.05
    Ca[WO
     
    4
    		]
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
  		• Arthurite8.DC.15
    CuFe
    3+
    2
    		[(OH,O)|(AsO
     
    4
    		,PO
     
    4
    		,SO
     
    4
    		)]
     
    2
    		 · 4H
     
    2
    		O
  		• Barbosalite8.BB.40
    Fe
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
  		• Beraunite8.DC.27
    Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 4H
     
    2
    		O
  		• Cacoxenite8.DC.40
    Fe
    3+
    24
    		Al[(OH)
     
    12
    		|O
     
    6
    		|(PO
     
    4
    		)
     
    17
    		] · 17H
     
    2
    		O
  		• Chalcosiderite8.DD.15
    Cu(Fe
    3+
     
    		,Al)
     
    6
    		[(OH)
     
    4
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 4H
     
    2
    		O
  		• Cyrilovite8.DL.10
    NaFe
    3+
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
  		• Dufrénite8.DK.15
    Ca
     
    0.5
    		Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 2H
     
    2
    		O
  		• Florencite-(La)8.BL.13
    LaAl
     
    3
    		[(OH)
     
    6
    		|(PO
     
    4
    		)
     
    2
    		]
  		• Frondelite8.BC.10
    Mn
    2+
     
    		Fe
    3+
    4
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		]
  		• Hentschelite8.BB.40
    CuFe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
  		• Leucophosphite8.DH.10
    KFe
    3+
    2
    		[OH|(PO
     
    4
    		)
     
    2
    		] · 2H
     
    2
    		O
  		• Libethenite8.BB.30
    Cu
     
    2
    		[OH|PO
     
    4
    		]
  		• Metatorbernite8.EB.10
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
  		• Mitridatite8.DH.30
    Ca
     
    2
    		Fe
    3+
    3
    		[O
     
    2
    		|(PO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
  		• Morinite8.DM.05
    Na
     
    2
    		Ca
     
    4
    		Al
     
    4
    		[(F,OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 3H
     
    2
    		O
  		• Pseudomalachite8.BD.05
    Cu
     
    5
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
  		• Pyromorphite8.BN.05
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
  		• Rockbridgeite8.BC.10
    Fe
    2+
     
    		Fe
    3+
    4
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		]
  		• Scorodite8.CD.10
    Fe
    3+
     
    		AsO
     
    4
    		·2H
     
    2
    		O
  		• Strunzite8.DC.25
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
  		• Torbernite8.EB.05
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
  		• Turquoise8.DD.15
    Cu(Al,Fe
    3+
     
    		)
     
    6
    		[(OH)
     
    4
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 4H
     
    2
    		O
      var: Rashleighite8.DD.15
    Cu(Al,Fe)
     
    6
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    8
    		·5H
     
    2
    		O
  		• Variscite8.CD.10
    AlPO
     
    4
    		·2H
     
    2
    		O
  		• Wavellite8.DC.50
    Al
     
    3
    		[(OH,F)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5H
     
    2
    		O
  		• Waylandite8.BL.13
    (Bi,Ca)Al
     
    3
    		[(OH)
     
    6
    		|(PO
     
    4
    		,SiO
     
    4
    		)
     
    2
    		]
    Group 9 - Silicates
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Beryl9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
  		• Biotite9..
  		• Dravite9.CK.05
    [Na][Mg
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Elbaite9.CK.05
    [Na][(Li,Al)
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Muscovite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
      var: Gilbertite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Plancheite ?9.DB.35
    Cu
     
    8
    		[(OH)
     
    4
    		|Si
     
    8
    		O
     
    22
    		] · H
     
    2
    		O
  		• Schorl9.CK.05
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Topaz9.AF.35
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
  		• Zinnwaldite9.EC.20
    KLiFe
    2+
     
    		Al[(F,OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• Columbite-
    (Fe,Mn)(Nb,Ta)
     
    2
    		O
     
    6
  		• Lepidolite-
  		• 'Mica Group'-
  		• 'Sericite'-
  		• Tantalite-
    (Fe,Mn)(Ta,Nb)
     
    2
    		O
     
    6
  		• 'Tourmaline
    var: Achroite'    		-
  		• Wolframite-
    (Fe
    2+
     
    		)WO
     
    4
     
     
    		to (Mn
    2+
     
    		)WO
     
    4


    78 entries listed. 68 valid minerals.

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