Sark's Hope Mine, Little Sark, Sark, Bailiwick of Guernseyi
Regional Level Types | |
---|---|
Sark's Hope Mine | Mine |
Little Sark | Peninsula |
Sark | Island |
Bailiwick of Guernsey | Crown Dependency |
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Latitude & Longitude (WGS84):
49° 24' 38'' North , 2° 22' 26'' West
Latitude & Longitude (decimal):
Type:
Sark, Channel Islands. Mineralogical Magazine 47: 539-545.
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Sark | 600 (2018) | 2.8km |
La Seigneurie | 170 (2012) | 3.1km |
Saint Peter Port | 16,488 (2013) | 12.9km |
Saint Helier | 28,000 (2018) | 31.5km |
Jobourg | 419 (2017) | 45.4km |
Mindat Locality ID:
18929
Long-form identifier:
mindat:1:2:18929:4
GUID (UUID V4):
a0037fba-ee8b-4abe-bd02-31d12bc0442a
Ixer and Stanley state that "[t]he small island of Sark, about 10 km east of Guernsey, was a site of active mining and exploration during the middle of the nineteenth century. Of all the mineral prospects on the island Sark's Hope mine on Little Sark was the most important and, indeed, was the only metalliferous mine in the Channel Islands to produce significant amounts of ore.
The most comprehensive account of the mineralization and mining history is that of Mourant and Warren (1934), which includes sections and maps of Sark's Hope mine and an extensive list of mineral species. Their work is largely a review of early accounts by Prince (1846) and Henwood (1871a , b ), supplemented by reports of the mining from the local press. A more recent systematic mineralogical and paragenetic study is that of Bishop et al. (1977 on one specimen, BM 1964R, 440 from the Russell Collection in the British Museum (Natural History).
The lead-silver-bearing vein, 'Sark's Hope Silver Lead lode', cuts a foliated hornblende granite of Late Precambrian age (Sutton and Watson, 1957). Although there is little trace of the vein today, with the outcrop workings being mostly obscured by a thick cover of vegetation, the early accounts describe it as 0.4 to 2.5 m in width, more than 600 m in length, oriented 028-037Β° and dipping at 65-85Β° to the northwest.
Small amounts of in situ ore were obtained from the poorly exposed and weathered parts of the vein at the southwestern end, but most of our specimens were collected from the spoil tips, in particular from Le Pelley's shaft tip at the northeastern end of the lode. Additional material was obtained from the Guernsey Museum collection, and the specimen in the British Museum (Natural History) collection BM 1964R, 440 was re-examined. Forty-three polished sections and five polished thin sections were investigated by reflected and transmitted light microscope techniques. Selected sulphides and sulphosalts were analysed by electron microprobe, and some secondary minerals were identified by X-ray diffraction."
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities25 valid minerals.
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
β Acanthite Formula: Ag2S |
β Anglesite Formula: PbSO4 |
β Azurite Formula: Cu3(CO3)2(OH)2 |
β Calcite Formula: CaCO3 |
β Cerussite Formula: PbCO3 |
β Chalcocite Formula: Cu2S |
β Chalcopyrite Formula: CuFeS2 |
β Chlorargyrite Formula: AgCl |
β 'Chlorite Group' |
β Covellite Formula: CuS |
β Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
β Galena Formula: PbS Localities: References: |
β Hematite Formula: Fe2O3 |
β 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
β 'Jasper' |
β Leadhillite Formula: Pb4(CO3)2(SO4)(OH)2 |
β 'Limonite' |
β Malachite Formula: Cu2(CO3)(OH)2 |
β Marcasite Formula: FeS2 |
β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
β Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
β Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
β Orthoclase Formula: K(AlSi3O8) |
β Pearceite Formula: [Ag6As2S7][Ag9CuS4] References: |
β 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 |
β Polybasite Formula: [Ag6Sb2S7][Ag9CuS4] |
β Pyrargyrite Formula: Ag3SbS3 |
β Pyrite Formula: FeS2 |
β Pyrite var. Bravoite Formula: (Fe,Ni)S2 |
β Pyrrhotite Formula: Fe1-xS References: |
β Quartz Formula: SiO2 |
β Quartz var. Amethyst Formula: SiO2 |
β Quartz var. Chalcedony Formula: SiO2 |
β Scorodite Formula: Fe3+AsO4 · 2H2O References: |
β Sphalerite Formula: ZnS |
β 'Tennantite Subgroup' Formula: Cu6(Cu4C2+2)As4S12S Description: Lead rich 4.6% |
β 'Tennantite Subgroup var. Lead-bearing Tennantite' Formula: Cu6(Cu4(Zn/Fe,Pb))2)As4S12S References: |
β 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Chalcocite | 2.BA.05 | Cu2S |
β | Acanthite | 2.BA.35 | Ag2S |
β | Covellite | 2.CA.05a | CuS |
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
β | Galena | 2.CD.10 | PbS |
β | Pyrite var. Bravoite | 2.EB.05a | (Fe,Ni)S2 |
β | 2.EB.05a | FeS2 | |
β | Marcasite | 2.EB.10a | FeS2 |
β | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
β | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
β | 'Tennantite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)As4S12S |
β | 'var. Lead-bearing Tennantite' | 2.GB.05 | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
β | Pearceite | 2.GB.15 | [Ag6As2S7][Ag9CuS4] |
β | Polybasite | 2.GB.15 | [Ag6Sb2S7][Ag9CuS4] |
Group 3 - Halides | |||
β | Chlorargyrite | 3.AA.15 | AgCl |
Group 4 - Oxides and Hydroxides | |||
β | Hematite | 4.CB.05 | Fe2O3 |
β | Quartz var. Amethyst | 4.DA.05 | SiO2 |
β | 4.DA.05 | SiO2 | |
β | var. Chalcedony | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
β | Cerussite | 5.AB.15 | PbCO3 |
β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
β | Leadhillite | 5.BF.40 | Pb4(CO3)2(SO4)(OH)2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Anglesite | 7.AD.35 | PbSO4 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Scorodite | 8.CD.10 | Fe3+AsO4 Β· 2H2O |
Group 9 - Silicates | |||
β | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
β | var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
β | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
β | Orthoclase | 9.FA.30 | K(AlSi3O8) |
Unclassified | |||
β | 'Chlorite Group' | - | |
β | 'Jasper' | - | |
β | 'Hornblende Root Name Group' | - | β»Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
β | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
β | 'Limonite' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Azurite | Cu3(CO3)2(OH)2 |
H | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
H | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
H | β Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
H | β Malachite | Cu2(CO3)(OH)2 |
H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
H | β Scorodite | Fe3+AsO4 · 2H2O |
H | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
H | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
C | Carbon | |
C | β Azurite | Cu3(CO3)2(OH)2 |
C | β Calcite | CaCO3 |
C | β Cerussite | PbCO3 |
C | β Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
C | β Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | β Quartz var. Amethyst | SiO2 |
O | β Anglesite | PbSO4 |
O | β Azurite | Cu3(CO3)2(OH)2 |
O | β Calcite | CaCO3 |
O | β Cerussite | PbCO3 |
O | β Quartz var. Chalcedony | SiO2 |
O | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
O | β Hematite | Fe2O3 |
O | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
O | β Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
O | β Malachite | Cu2(CO3)(OH)2 |
O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
O | β Orthoclase | K(AlSi3O8) |
O | β Quartz | SiO2 |
O | β Scorodite | Fe3+AsO4 · 2H2O |
O | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
O | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
O | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
F | Fluorine | |
F | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Na | Sodium | |
Na | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Al | Aluminium | |
Al | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Al | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | β Orthoclase | K(AlSi3O8) |
Al | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Al | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Al | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | Silicon | |
Si | β Quartz var. Amethyst | SiO2 |
Si | β Quartz var. Chalcedony | SiO2 |
Si | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | β Orthoclase | K(AlSi3O8) |
Si | β Quartz | SiO2 |
Si | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Si | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Si | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
S | Sulfur | |
S | β Acanthite | Ag2S |
S | β Anglesite | PbSO4 |
S | β Pyrite var. Bravoite | (Fe,Ni)S2 |
S | β Chalcopyrite | CuFeS2 |
S | β Chalcocite | Cu2S |
S | β Covellite | CuS |
S | β Galena | PbS |
S | β Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
S | β Marcasite | FeS2 |
S | β Pearceite | [Ag6As2S7][Ag9CuS4] |
S | β Polybasite | [Ag6Sb2S7][Ag9CuS4] |
S | β Pyrargyrite | Ag3SbS3 |
S | β Pyrite | FeS2 |
S | β Pyrrhotite | Fe1-xS |
S | β Sphalerite | ZnS |
S | β Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
S | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
S | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
Cl | Chlorine | |
Cl | β Chlorargyrite | AgCl |
Cl | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
K | Potassium | |
K | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
K | β Orthoclase | K(AlSi3O8) |
K | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | β Calcite | CaCO3 |
Ca | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Ca | β Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
Ca | β Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Fe | Iron | |
Fe | β Pyrite var. Bravoite | (Fe,Ni)S2 |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Fe | β Hematite | Fe2O3 |
Fe | β Marcasite | FeS2 |
Fe | β Pyrite | FeS2 |
Fe | β Pyrrhotite | Fe1-xS |
Fe | β Scorodite | Fe3+AsO4 · 2H2O |
Fe | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
Ni | Nickel | |
Ni | β Pyrite var. Bravoite | (Fe,Ni)S2 |
Cu | Copper | |
Cu | β Azurite | Cu3(CO3)2(OH)2 |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Chalcocite | Cu2S |
Cu | β Covellite | CuS |
Cu | β Malachite | Cu2(CO3)(OH)2 |
Cu | β Pearceite | [Ag6As2S7][Ag9CuS4] |
Cu | β Polybasite | [Ag6Sb2S7][Ag9CuS4] |
Cu | β Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
Cu | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Cu | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Zn | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
As | Arsenic | |
As | β Pearceite | [Ag6As2S7][Ag9CuS4] |
As | β Scorodite | Fe3+AsO4 · 2H2O |
As | β Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
As | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
Ag | Silver | |
Ag | β Acanthite | Ag2S |
Ag | β Chlorargyrite | AgCl |
Ag | β Pearceite | [Ag6As2S7][Ag9CuS4] |
Ag | β Polybasite | [Ag6Sb2S7][Ag9CuS4] |
Ag | β Pyrargyrite | Ag3SbS3 |
Sb | Antimony | |
Sb | β Polybasite | [Ag6Sb2S7][Ag9CuS4] |
Sb | β Pyrargyrite | Ag3SbS3 |
Sb | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Pb | Lead | |
Pb | β Anglesite | PbSO4 |
Pb | β Cerussite | PbCO3 |
Pb | β Galena | PbS |
Pb | β Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
Pb | β Tennantite Subgroup var. Lead-bearing Tennantite | Cu6(Cu4(Zn/Fe,Pb))2)As4S12S |
Mindat Articles
Review: Silver Mining on Sark by Keith ComptonLocalities in this Region
- Sark
- Little Sark
- Sark's Hope Mine
- Little Sark
Other Regions, Features and Areas containing this locality
Channel IslandsGroup of Islands
Eurasian PlateTectonic Plate
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Sark's Hope Mine, Little Sark, Sark, Bailiwick of Guernsey