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Breage, Mount's Bay District, Cornwall, England, UK

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Detailed Mineral List:


Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite
Formula: Na(AlSi3O8)
Alluaudite
Formula: (Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Amblygonite
Formula: LiAl(PO4)F
'Apatite'
Arsenopyrite
Formula: FeAsS
Bertrandite
Formula: Be4(Si2O7)(OH)2
Cassiterite
Formula: SnO2
Localities:
Reported from at least 11 localities in this region.
Cassiterite var: Wood Tin
Formula: SnO2
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Localities:
Reported from at least 6 localities in this region.
Chalcopyrite var: Blister Copper
Formula: CuFeS2
'Chlorite Group'
Copper
Formula: Cu
Cuprite
Formula: Cu2O
Cuprite var: Chalcotrichite
Formula: Cu2O
Cuprite var: Tile ore
Formula: Cu2O
Dolomite
Formula: CaMg(CO3)2
Erythrite
Formula: Co3(AsO4)2 · 8H2O
Fluorapatite
Formula: Ca5(PO4)3F
Fluorapatite var: Mn-bearing Fluorapatite
Formula: (Ca,Mn2+)5(PO4)3(F,Cl,OH) or Ca5([P,Mn5+]O4)3(F,Cl,OH)
Fluorite
Formula: CaF2
Galena
Formula: PbS
Goethite
Formula: α-Fe3+O(OH)
Gypsum
Formula: CaSO4 · 2H2O
Hematite
Formula: Fe2O3
'Hornblende'
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
'K Feldspar var: Adularia'
Formula: KAlSi3O8
'Lepidolite'
'Limonite'
Formula: (Fe,O,OH,H2O)
Löllingite
Formula: FeAs2
Malachite
Formula: Cu2(CO3)(OH)2
Mimetite
Formula: Pb5(AsO4)3Cl
'Monazite'
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Gilbertite
Formula: KAl2(AlSi3O10)(OH)2
'Natromontebrasite'
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Opal
Formula: SiO2 · nH2O
Reference: [Specimen in the Natural History Museum, London]
Opal var: Opal-Jasper
Formula: SiO2 · nH2O
Reference: [Specimen in the Natural History Museum, London]
Orthoclase
Formula: K(AlSi3O8)
Pyrite
Formula: FeS2
Localities:
Reported from at least 6 localities in this region.
Quartz
Formula: SiO2
Localities:
Reported from at least 7 localities in this region.
Quartz var: Agate
Quartz var: Chalcedony
Formula: SiO2
Rutile
Formula: TiO2
Rutile var: Strüverite
Formula: (Ti,Ta,Fe)O2
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Siderite
Formula: FeCO3
Skutterudite
Formula: CoAs3
Sphalerite
Formula: ZnS
Stibnite
Formula: Sb2S3
Sulphur
Formula: S8
Talc
Formula: Mg3Si4O10(OH)2
Talc var: Steatite
Formula: Mg3(Si4O10)(OH)2
Tennantite
Formula: Cu6[Cu4(Fe,Zn)2]As4S13
Tenorite
Formula: CuO
Topaz
Formula: Al2(SiO4)(F,OH)2
Triphylite
Formula: LiFe2+PO4
Triplite
Formula: (Mn2+,Fe2+)2(PO4)(F,OH)
Tristramite (TL)
Formula: (Ca,U,Fe)(PO4,SO4) · 2H2O
Reference: Atkin, D., Basham, I.R., and Bowles, J.F.W. (1983): Mineralogical Magazine 47, 393-396
Localities: Recorded from at least 1 other locality in this region.
Uraninite
Formula: UO2
Uraninite var: Pitchblende
Formula: UO2
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
'Xenotime'
'Zinnwaldite'
Formula: KLiFe2+Al(AlSi3O10)(F,OH)2
Zircon
Formula: Zr(SiO4)
Zwieselite
Formula: (Fe2+,Mn2+)2(PO4)F
Mineral and/or Locality  
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