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St Michael's Mount, Marazion, Mount's Bay District, Cornwall, England, UK
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Detailed Mineral List:
Actinolite
Formula: ☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 148
'Apatite'
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 128; 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.
Photo: © Dr. Holger Klapproth. Apatite from St Michael's Mount, Marazion, Mount's Bay District, Cornwall, England, UK
Arsenopyrite
Formula: FeAsS
Reference: F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396
Beryl
Formula: Be3Al2(Si6O18)
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.
Photo: © Ian Jones. Beryl from St Michael's Mount, Marazion, Mount's Bay District, Cornwall, England, UK
Cassiterite
Formula: SnO2
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.
Photo: © Chris Popham. Cassiterite from St Michael's Mount, Marazion, Mount's Bay District, Cornwall, England, UK
Chalcopyrite
Formula: CuFeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Fluorite
Formula: CaF2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 131; 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.
Galena
Formula: PbS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
'Garnet'
Formula: X3Z2(SiO4)3
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Kesterite
Formula: Cu2(Zn,Fe)SnS4
Reference: F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396
Lepidolite
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.
Löllingite
Formula: FeAs2
Reference: F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Orthoclase
Formula: KAlSi3O8
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.
'Pinite'
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 161; 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.
Quartz
Formula: SiO2
Reference: F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396
Quartz var: Citrine
Reference: [Golley & Williams, 1995 - "Cornish Mineral Reference Manual", 51]
Quartz var: Rock Crystal
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.
Quartz var: Rose Quartz
Reference: No reference listed
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
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.
Sphalerite
Formula: ZnS
Reference: Forbes, M.D. (1822): Transactions of the Royal Geological Society of Cornwall 2, 366-375.
Stannite
Formula: Cu2(Fe,Zn)SnS4
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.
Stannoidite
Formula: Cu+6Cu2+2(Fe2+,Zn)3Sn2S12
Reference: [Golley & Williams, 1995, 58 - "Cornish Mineral Reference Manual"]; Canadian Mineralogist Vol. 25, pp,229-236 (1987); F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396
Photo: © . Stannoidite from St Michael's Mount, Marazion, Mount's Bay District, Cornwall, England, UK
Stibnite
Formula: Sb2S3
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 156; 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: 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.
Zippeite
Formula: K3(UO2)4(SO4)2O3(OH) · 3H2O
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.


28 entries listed. 21 valid minerals.

References

Forbes, M.D. (1822): On the Geology of St. Michael's Mount. Transactions of the Royal Geological Society of Cornwall 2, 366-375.

F. Moore and R. A. Howie (1984) Tin-Bearing Sulphides from St Michael's Mount and Cligga Head, Cornwall. Mineralogical Magazine 48:389-396

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