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Holmbush Mine, Callington United Mines (incl. Emmens United Mines), Stokeclimsland, Cornwall, England, UKi
Regional Level Types
Holmbush MineMine (Abandoned)
Callington United Mines (incl. Emmens United Mines)Group of Mines
StokeclimslandVillage
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 31' 28'' North , 4° 19' 4'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX358720
Locality type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Callington5,786 (2017)2.6km
Pensilva1,663 (2017)7.3km
Gunnislake4,044 (2017)7.4km
Calstock790 (2017)8.5km
Bere Alston2,164 (2018)10.2km


Holmbush, Redmoor, Kelly Bray where usually worked in conjunction. The small mines of West Holmbush, East Holmsbush (Lady Beam), and South Kelly Bray were occasionally included.

The mine is quite old and was probably at work in the early 1600's, possibly mostly on the lead lode, and again in the late 1700's. From about the late 1830's the amalgamation of the mines may have started under various names to the final closure in 1892.
Holmbush mine developed five ENE-WSW copper-tin lodes of which only Holmbush and Flopjack was developed to any depth. A N-S lead lode was also worked. Where the lead lode intersects the E-W lodes it displaces them 15mts north on the east side. The lead lode was worked by levels driven north and south from the other two E-W lodes lodes between the 90 and 132 fathom levels. The two E-W lodes about 185mts apart where developed by a number of shafts to a depth of 390 mts.
The dumps were reworked in 1919-21.
Ref: Richardson P.H.G. (1991) Mines of Dartmoor & the Taymar Valley after 1913, Devon Books, Tiverton.
Dines 1956.
Hamilton Jenkin XV 1969.

There is a dump beside the Kelly Bray to Stoke Climsland road where the 2 engine houses have been partly restored and made safe. This dump has been partly cleared on the field side. Back a little towards Kelly Bray a small unmade track leads down into the valley. Beside this is another dump which has been almost completely cleared. Along the valley floor there is a very substantial dump which does not appear to have been touched by the reworking carried out in the early 1920s.
The grid reference marks the engine house ruin at Hitchins Shaft.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


30 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Reference: Richard de Nul collection
Aragonite
Formula: CaCO3
Reference: Richard de Nul collection
Arsenopyrite
Formula: FeAsS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Aurichalcite ?
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: The specimen in the photo can be a variety of things, including aurichalcite.
Reference: Collection Richard De Nul
Cassiterite
Formula: SnO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Cerussite
Formula: PbCO3
Reference: Colelction Richard De Nul
Chalcopyrite
Formula: CuFeS2
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Copper
Formula: Cu
Reference: Richard De Nul collection
Covellite
Formula: CuS
Description: Note that the specimens in the photos may be of post-collection growth.
Reference: Collection Richard De Nul
Cuprite
Formula: Cu2O
Reference: Richard De Nul collection
Fluorapatite (TL)
Formula: Ca5(PO4)3F
Type Locality:
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
Fluorite
Formula: CaF2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Galena
Formula: PbS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Goethite
Formula: α-Fe3+O(OH)
Reference: Collection Richard De Nul
Gypsum
Formula: CaSO4 · 2H2O
Reference: Collection Richard De Nul
Hemimorphite ?
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Collection Richard De Nul
Kaolinite
Formula: Al2(Si2O5)(OH)4
Description: (constituent of tavistockite)
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Colelction Richard De Nul
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Richard De Nul collection
Marcasite
Formula: FeS2
Reference: Collection Richard De Nul
Melanterite ?
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Collection Richard De Nul
Olivenite ?
Formula: Cu2(AsO4)(OH)
Reference: Collection Richard De Nul
Pyrargyrite
Formula: Ag3SbS3
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
Pyrite
Formula: FeS2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Quartz
Formula: SiO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Siderite
Formula: FeCO3
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626
Silver
Formula: Ag
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Sphalerite
Formula: ZnS
Reference: Collection Richard De Nul
Stannite
Formula: Cu2FeSnS4
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
Sulphur
Formula: S8
Reference: Collection Richard De Nul
'Tavistockite'
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 105 pp.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Silver1.AA.05Ag
Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Stannite2.CB.15aCu2FeSnS4
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Cuprite4.AA.10Cu2O
Goethite4.00.α-Fe3+O(OH)
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Aurichalcite ?5.BA.15(Zn,Cu)5(CO3)2(OH)6
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Gypsum7.CD.40CaSO4 · 2H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Melanterite ?7.CB.35Fe2+(H2O)6SO4 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite (TL)8.BN.05Ca5(PO4)3F
var. Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Olivenite ?8.BB.30Cu2(AsO4)(OH)
Group 9 - Silicates
Hemimorphite ?9.BD.10Zn4Si2O7(OH)2 · H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Tavistockite'-
'Wolframite'-(Fe2+)WO4to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Silver1.1.1.2Ag
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Stannite2.9.2.1Cu2FeSnS4
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX2
Cassiterite4.4.1.5SnO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Aurichalcite ?16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Melanterite ?29.6.10.1Fe2+(H2O)6SO4 · H2O
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)4(XO4)Zq·xH2O
Langite31.4.3.1Cu4(SO4)(OH)6 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A2(XO4)Zq
Olivenite ?41.6.6.1Cu2(AsO4)(OH)
A5(XO4)3Zq
Fluorapatite (TL)41.8.1.1Ca5(PO4)3F
var. Carbonate-rich Fluorapatite41.8.1.4Ca5(PO4,CO3)3(F,O)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite ?56.1.2.1Zn4Si2O7(OH)2 · H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
Kaolinite-Al2(Si2O5)(OH)4
'Tavistockite'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H LangiteCu4(SO4)(OH)6 · 2H2O
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H KaoliniteAl2(Si2O5)(OH)4
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H MelanteriteFe2+(H2O)6SO4 · H2O
H OliveniteCu2(AsO4)(OH)
H HemimorphiteZn4Si2O7(OH)2 · H2O
CCarbon
C AragoniteCaCO3
C Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
C CerussitePbCO3
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
OOxygen
O FluorapatiteCa5(PO4)3F
O AnglesitePbSO4
O AragoniteCaCO3
O QuartzSiO2
O Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
O SideriteFeCO3
O CupriteCu2O
O MalachiteCu2(CO3)(OH)2
O CassiteriteSnO2
O CerussitePbCO3
O LangiteCu4(SO4)(OH)6 · 2H2O
O Goethiteα-Fe3+O(OH)
O GypsumCaSO4 · 2H2O
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O KaoliniteAl2(Si2O5)(OH)4
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O MelanteriteFe2+(H2O)6SO4 · H2O
O OliveniteCu2(AsO4)(OH)
O HemimorphiteZn4Si2O7(OH)2 · H2O
FFluorine
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
Si HemimorphiteZn4Si2O7(OH)2 · H2O
PPhosphorus
P FluorapatiteCa5(PO4)3F
P Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
SSulfur
S ArsenopyriteFeAsS
S AnglesitePbSO4
S PyrargyriteAg3SbS3
S StanniteCu2FeSnS4
S PyriteFeS2
S GalenaPbS
S LangiteCu4(SO4)(OH)6 · 2H2O
S GypsumCaSO4 · 2H2O
S CovelliteCuS
S SulphurS8
S SphaleriteZnS
S MarcasiteFeS2
S ChalcopyriteCuFeS2
S MelanteriteFe2+(H2O)6SO4 · H2O
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca AragoniteCaCO3
Ca Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Ca GypsumCaSO4 · 2H2O
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ArsenopyriteFeAsS
Fe StanniteCu2FeSnS4
Fe PyriteFeS2
Fe SideriteFeCO3
Fe Goethiteα-Fe3+O(OH)
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
Fe MarcasiteFeS2
Fe ChalcopyriteCuFeS2
Fe MelanteriteFe2+(H2O)6SO4 · H2O
CuCopper
Cu StanniteCu2FeSnS4
Cu CupriteCu2O
Cu CopperCu
Cu MalachiteCu2(CO3)(OH)2
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu CovelliteCuS
Cu ChalcopyriteCuFeS2
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu OliveniteCu2(AsO4)(OH)
ZnZinc
Zn SphaleriteZnS
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
AsArsenic
As ArsenopyriteFeAsS
As OliveniteCu2(AsO4)(OH)
AgSilver
Ag PyrargyriteAg3SbS3
Ag SilverAg
SnTin
Sn StanniteCu2FeSnS4
Sn CassiteriteSnO2
SbAntimony
Sb PyrargyriteAg3SbS3
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
PbLead
Pb AnglesitePbSO4
Pb GalenaPbS
Pb CerussitePbCO3

Geochronology

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Permian
   Guadalupian
ⓘ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
ⓘ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
ⓘ Greisenization (latest age)~280 MaCornwall, England, UK
ⓘ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
ⓘ Formation of metallized pegmatites~285 MaCornwall, England, UK
ⓘ Greisenization (earliest age)~285 MaCornwall, England, UK
ⓘ Emplacement of major plutons~295 MaCornwall, England, UK

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 625-626.

Other Regions, Features and Areas containing this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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