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Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
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Detailed Mineral List:
'Agardite'
Arsenopyrite
Formula: FeAsS
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Asbolane
Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 33; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: Azurite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Bayldonite
Formula: PbCu3(AsO4)2(OH)2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Beudantite
Formula: PbFe3(AsO4)(SO4)(OH)6
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Bornite
Formula: Cu5FeS4
Reference: No reference listed
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Carminite
Formula: PbFe3+2(AsO4)2(OH)2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Cassiterite
Formula: SnO2
Reference: LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Ceruleite
Formula: Cu2Al7(AsO4)4(OH)13 · 11.5H2O
Reference: [Embrey & Symes, 1987, 93 - "Minerals of Cornwall and Devon"]; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Photo: © Steve Rust. Ceruleite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Cerussite
Formula: PbCO3
Reference: No reference listed
Chalcocite
Formula: Cu2S
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Maurice de Graaf. Chalcocite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Chalcophyllite
Formula: Cu18Al2(SO4)3(AsO4)3(OH)27 · 33H2O
Habit: Hexagonal plates
Colour: Bluish-green
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © J.Ralph 2008. Chalcophyllite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Chalcopyrite
Formula: CuFeS2
Reference: Embrey, P.G., and Symes, R.F. (1987): Minerals of Cornwall and Devon. British Museum of Natural History (London), 154 pp.; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.
Localities: Recorded from at least 1 other locality in this region.
Chenevixite (TL)
Formula: Cu2Fe3+2(AsO4)2(OH)4
Type Locality: Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Reference: Fluorite: The Collector's Choice. Extra Lapis English No. 9
Photo: © Steve Rust. Chenevixite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
'Chlorite Group'
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O (x < 1)
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 40; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Clinoclase (TL)
Formula: Cu3(AsO4)(OH)3
Type Locality: Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Habit: Often as radiating spheres of crystals.
Colour: Blue
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: Clinoclase from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Connellite
Formula: Cu19(SO4)(OH)32Cl4 · 3H2O
Reference: [Embrey & Symes, 1987, 102 - "Minerals of Cornwall and Devon"]; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Localities: Recorded from at least 1 other locality in this region.
Photo: © J.Ralph. Connellite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Copper
Formula: Cu
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 30; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © De Nul, Richard. Copper from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Cornubite
Formula: Cu5(AsO4)2(OH)4
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Localities: Recorded from at least 1 other locality in this region.
Cornwallite (TL)
Formula: Cu5(AsO4)2(OH)4
Type Locality: Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Reference: Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Localities: Recorded from at least 1 other locality in this region.
Photo: © Steve Rust. Cornwallite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Cuprite
Formula: Cu2O
Habit: Octahedral, cube-octahedral
Colour: Red
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 32; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Ian Jones. Cuprite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Cuprite var: Chalcotrichite
Formula: Cu2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Cuprite var: Tile ore
Formula: Cu2O
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Cuprotungstite
Formula: Cu2(WO4)(OH)2
Reference: [Golley & Williams, 1995, "Cornish Mineral Reference Manual", p21]
Cyanotrichite
Formula: Cu4Al2(SO4)(OH)12 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Djurleite
Formula: Cu31S16
Locality: Wheal Muttrall (Wheal Muttrell), Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Domeykite ?
Formula: Cu3As
Description: Arsenical copper pyrites (an old name for Domeykite) is recorded as having been found here by Phillips (1823). Elsewhere he notes that this mineral consists "of 40 per cent of copper, the remainder consisting of iron, arsenic and sulphur". Thus, the material was either impure or a mixture of different minerals and therefore, the occurrence has to be considered as questionable.
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
Fluorite
Formula: CaF2
Habit: Cubes and cubo-octahedrons
Colour: Green
Description: A little known fact is that fluorite was apparently mined as smelting flux, although there are no production figures (W. Phillips, ca. 1805).
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 131; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Rocks & Minerals 17, 129
Photo: © J.Ralph 2004. Fluorite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Galena
Formula: PbS
Reference: No reference listed
Gibbsite
Formula: Al(OH)3
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Gold
Formula: Au
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hisingerite
Formula: Fe3+2(Si2O5)(OH)4 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hübnerite
Formula: MnWO4
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hydrokenoelsmoreite
Formula: 2W2O6(H2O)
Reference: No reference listed
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Lapis 11(2), 29-32 (1986)
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: No reference listed
Leucophosphite
Formula: KFe3+2(PO4)2(OH) · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Libethenite
Formula: Cu2(PO4)(OH)
Reference: No reference listed
'Limonite'
Formula: FeO(OH) · nH2O
Reference: No reference listed
Localities: Recorded from at least 1 other locality in this region.
Liroconite (TL)
Formula: Cu2Al(AsO4)(OH)4 · 4H2O
Type Locality: Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Habit: most typically as flattened bipyramids
Colour: blue
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Am.Min.: 36:484 (1951); Rocks & Min.: 60(1):24
Localities: Recorded from at least 1 other locality in this region.
Photo: © François Périnet. Liroconite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 34; Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Peter Haas. Malachite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Metazeunerite
Formula: Cu(UO2)2(AsO4)2 · 8H2O
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 994.; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Mimetite
Formula: Pb5(AsO4)3Cl
Description: Occurred on cuprite (Phillips, 1823).
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 11; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Mixite
Formula: BiCu6(AsO4)3(OH)6 · 3H2O
Photo: © 2002 Thames Valley Minerals. Mixite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Molybdenite
Formula: MoS2
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 79; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Photo: © Paul De Bondt. Molybdenite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
'Monazite'
Reference: LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.
Olivenite
Formula: Cu2(AsO4)(OH)
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Steve Rust. Olivenite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Olivenite var: Wood Copper
Reference: No reference listed
Photo: © J.Ralph 2004. Wood Copper from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Opal
Formula: SiO2 · nH2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Opal var: Fire Opal
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 191
Parnauite
Formula: Cu9(AsO4)2(SO4)(OH)10 · 7H2O
Reference: [Golley & Williams, 1995, 47 - "Cornish Mineral Reference Manual"]
Photo: © Steve Rust. Parnauite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 63; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © 2003 Thames Valley Minerals. Pharmacosiderite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Phenakite
Formula: Be2SiO4
Reference: [Golley & Williams, 1995 - "Cornish Mineral Reference Manual"]
Plumbogummite
Formula: PbAl3(PO4)2(OH)5 · H2O
Reference: [Golley & Williams, 1995, 48 - "Cornish Mineral Reference Manual"]
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Reference: No reference listed
Pyrite
Formula: FeS2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 40; LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.
Quartz
Formula: SiO2
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Photo: © J.Ralph. Quartz from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Quartz var: Milky Quartz
Reference: Lapis 11(2), 29-32 (1986)
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Lapis 11(2), 29-32 (1986)
Scorodite
Formula: FeAsO4 · 2H2O
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Localities: Recorded from at least 1 other locality in this region.
Photo: © Steve Rust. Scorodite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Sieleckiite
Formula: Cu3Al4(PO4)2(OH)12 · 2H2O
Reference: M Rumsey & G Cressey (2010) The first confirmed British occurrence of sieleckiite. Russell Soc Jnl v13
Spangolite
Formula: Cu6Al(SO4)(OH)12Cl · 3H2O
Reference: [Embrey & Symes, 1987, 124 - "Minerals of Cornwall and Devon"]
Photo: © . Spangolite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Sphalerite
Formula: ZnS
Reference: LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.
Strashimirite
Formula: Cu8(AsO4)4(OH)4 · 5H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Tennantite
Formula: Cu6[Cu4(Fe,Zn)2]As4S13
Reference: No reference listed
Tenorite
Formula: CuO
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Embrey, P.G., and Symes, R.F. (1987): Minerals of Cornwall and Devon. British Museum of Natural History (London), 154 pp.; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Localities: Recorded from at least 1 other locality in this region.
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 28; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Photo: © Dan & Diana Weinrich Minerals. Torbernite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Uraninite var: Pitchblende
Formula: UO2
Reference: Lapis 11(2), 29-32 (1986)
'Varlamoffite'
Formula: (Sn,Fe)(O,OH)2
Reference: No reference listed
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: [Embrey & Symes, 1987 - "Minerals of Cornwall and Devon", 50]; LeBoutillier, N. G., Shail, R. K., & Jewson, C. (2003). Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall.
Photo: Wolframite from Wheal Gorland, St Day United Mines, Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK
Zeunerite
Formula: Cu(UO2)2(AsO4)2 · 12H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications


75 entries listed. 62 valid minerals. 4 type localities (valid minerals).

References

Rocks & Minerals (1942): 17: 129.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 994.

American Mineralogist (1951): 36: 484.

Rocks and Minerals (1985): 60(1): 24.

Lapis (1986): 11(2): 29-32.

Embrey & Symes (1987): Minerals of Cornwall and Devon, XXX Publishing, 50.

Le Boutillier, N. G., Shail, R. K., & Jewson, C. (2003): Monazite in polymetallic chlorite-(tourmaline)-quartz-(fluorite)-cassiterite-sulphide lodes and its potential for constraining the chronology of magmatic hydrothermal mineralisation in Cornwall. XXX Journal, xxx-xxx.

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