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Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK

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The area covered by Hendre Felen mine is realy a series of triels on a small discontinuous fault/vein system. Tried by at least four shafts and an adit. There is a record of 20 tons of lead ore produced in about 1870.





 UK OS Grid Reference: SN721697
Map Reference: 52°18'36"N , 3°52'34"W

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Mineral List:
  		•  Anglesite
    PbSO
     
    4
    Habit: Blocky
    Colour: Colourless
    Description: Xls to 1mm
    Reference: [S Rust collection]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Bindheimite
    Pb
     
    2
    		Sb
     
    2
    		O
     
    6
    		(O,OH)
    Habit: Massive, pseudomorphs after ullmannite
    Description: Pseudomorphs after ullmannite xls
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Bottinoite
    Ni
    2+
     
    		[Sb(OH)
     
    6
    		]
     
    2
    		 · 6H
     
    2
    		O
    Habit: Platy
    Colour: Light blue-green
    Description: Thin platy xls to 2mm (XRD)
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Brochantite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
    Habit: Platy
    Colour: Emerald green
    Description: Xls to 0.5mm
    Reference: [BMS Database]
  		•  Calcite
    CaCO
     
    3
    Habit: Masive
    Colour: White
    Reference: [BMS Database]
  		•  Caledonite
    Cu
     
    2
    		Pb
     
    5
    		[(OH)
     
    6
    		|CO
     
    3
    		|(SO
     
    4
    		)
     
    3
    		]
    Habit: Prismatic
    Colour: Light blue
    Description: Xls to 0.75mm
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Chalcopyrite
    CuFeS
     
    2
    Habit: Complex crystals
    Description: Xls to 6mm
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Galena
    PbS
    Habit: Cubo-octahedral
    Description: Cubo-octahedral xls to 2mm
    Reference: [BMS Database]
  		•  Langite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		] · 2H
     
    2
    		O
    Habit: Tabular
    Colour: Deep blue green
    Description: Xls to 1mm
    Reference: [S.Rust collection]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Lautenthalite
    PbCu
     
    4
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    		·3H
     
    2
    		O
    Habit: Platy
    Colour: Emerald green
    Description: Xls to 1mm (XRD)
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Leadhillite ?
    Pb
     
    4
    		SO
     
    4
    		(CO
     
    3
    		)
     
    2
    		(OH)
     
    2
    Description: (possibly sussannite)
    Reference: [BMS Database]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Habit: Balls
    Description: Xls to 0.7mm; balls to 1.5mm
    Reference: [S.Rust collection]
  		•  Mattheddleite
    Pb
     
    5
    		(Si
     
    1.5
    		S
     
    1.5
    		)O
     
    12
    		(Cl,OH)
    Description: Drusy crusts to 3mm
    Reference: [S.Rust collection]
  		•  Mimetite
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
    Description: Xls to 1mm (XRD)
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Pyrite
    FeS
     
    2
    Reference: [BMS Database]
  		•  Pyromorphite
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
    Description: Xl druses to 2cms
    Reference: [S. Rust collection]
  		•  Quartz
    SiO
     
    2
    Description: Xls to 7mm
    Reference: [BMS Database]
  		•  Redgillite
    Cu
     
    6
    		[(OH)
     
    10
    		|SO
     
    4
    		] · H
     
    2
    		O
    Habit: Lath like
    Colour: Light Green, green
    Reference: [S Rust collection]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Steverustite
    Pb
    2+
    5
    		(OH)
     
    5
    		[Cu
    1+
     
    		(S
    6+
     
    		O
     
    3
    		S
    2-
     
    		)
     
    3
    		](H
     
    2
    		O)
     
    2
    Reference: [Cooper, M.A., Hawthorne, F.C., Moffatt, E. (2009): Steverustite, Pb2+5(OH)5(Cu1+(S6+O3S2-)3)H2O)2, a new thiosulphate mineral from the Frongoch Mine Dump, Devils Bridge, Ceredigion, Wales: Description and crystal structure. Mineralogical Magazine, 73, 235-250; S. Rust Collection]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Susannite
    Pb
     
    4
    		SO
     
    4
    		(CO
     
    3
    		)
     
    2
    		(OH)
     
    2
    Description: Xls to 1mm
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Ullmannite
    NiSbS
    Habit: Cubic crystals and twins
    Colour: Lead grey
    Description: Xls to 5mm (good for wales)
    Reference: [BMS Database]
    Site Photo
    Hendre Felen Mine, Ysbyty Ystwyth, Ceredigion (Dyfed; Cardiganshire), Wales, UK
    © Steve Rust
  		•  Wroewolfeite ?
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [No reference listed]


    22 entries listed. 22 valid minerals.

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