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Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
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Detailed Mineral List:
Baryte
Formula: BaSO4
Reference: Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Photo: © De Nul, Richard. Baryte from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Calcite
Formula: CaCO3
Reference: collected by Richard de Nul
Photo: © De Nul, Richard. Calcite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Cassiterite
Formula: SnO2
Reference: collected by Richard de Nul
Photo: © De Nul, Richard. Cassiterite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Chalcocite
Formula: Cu2S
Reference: collected by Richard de Nul
Photo: © De Nul, Richard. Chalcocite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Chalcopyrite
Formula: CuFeS2
Reference: collected by Richard de Nul
Photo: © De Nul, Richard. Chalcopyrite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Copper
Formula: Cu
Reference: collected by Richard de Nul
Photo: © De Nul, Richard. Copper from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Collection Richard De Nul
Photo: © De Nul, Richard. Carbonate-rich Fluorapatite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Fluorite
Formula: CaF2
Reference: Collection Richard De Nul
Photo: © De Nul, Richard. Fluorite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Goethite
Formula: α-Fe3+O(OH)
Reference: No reference listed
Photo: © De Nul, Richard. Goethite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Hematite
Formula: Fe2O3
Reference: No reference listed
Photo: © De Nul, Richard. Hematite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Collection Richard De Nul
Photo: © De Nul, Richard. Adularia from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
'Limonite'
Formula: FeO(OH) · nH2O
Reference: No reference listed
Malachite
Formula: Cu2(CO3)(OH)2
Reference: No reference listed
Photo: © MJ2004. Malachite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Manganite
Formula: Mn3+O(OH)
Reference: P Haas - collected 2009
Quartz
Formula: SiO2
Reference: No reference listed
Photo: © De Nul, Richard. Quartz from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Quartz var: Amethyst
Formula: SiO2
Reference: P Haas (2007) - collected from the dump
Quartz var: Chalcedony
Reference: No reference listed
Photo: © De Nul, Richard. Chalcedony from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Quartz var: Jasper
Habit: massive
Description: Most siderite crystals are found in cavities of jasper.
Reference: Paul De Bondt collection
Quartz var: Smoky Quartz
Formula: SiO2
Reference: collected by M Perry (St Just)
Photo: © J.I.G.R.. Smoky Quartz from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Rhodochrosite
Formula: MnCO3
Reference: collected by G Moffatt, Pendeen
Photo: © Peter Haas. Rhodochrosite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Siderite
Formula: FeCO3
Reference: Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 106.
Photo: © Peter Haas. Siderite from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Collection Richard De Nul
Photo: © De Nul, Richard. Tourmaline from Wheal Drea, Wheal Owles, Botallack, St Just, St Just District, Cornwall, England, UK
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Habit: Elongated prismatic
Colour: Green
Reference: Collected by David Clough 8 May 2005; Confirmed by Natural History Museum (London) 8 July 2005; Report published in British Micromount Society Newsletter No. 71 - November 2005; Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 106.


23 entries listed. 15 valid minerals.
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