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Devon Great Consols, Gulworthy, West Devon, Devon, England, UKi
Regional Level Types
Devon Great ConsolsGroup of Mines (Abandoned)
GulworthyCivil Parish
West DevonBorough
DevonCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° North , 4° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~2km
Type:
Group of Mines (Abandoned) - last checked 2018
Köppen climate type:
Mindat Locality ID:
1527
Long-form identifier:
mindat:1:2:1527:4
GUID (UUID V4):
0


Includes the mines of Wheal Maria, Wheal Fanny, Wheal Anna Maria, Wheal Josiah, Wheal Emma, which lie from west to east along the main lode and were the principal sources of firstly copper then arsenic in the latter days. Wheal Frementor, Watson's Mine and Bedford United Mine all lie south of the main lode, Frementor (also called Framator) was mined latterly for tin in the most part and did not finally close until 1930.

Despite earlier attempts the mine did not become a going concern until Josiah Hitchins took up a lease in 1844. The lode was struck just 4 fathoms below the bottom of the previous working in Gard's Shaft at the western end of the sett. Within 6 months and at only 28 fathoms in depth this shaft was 'cutting yellow ore from corner to corner' and in March alone 810 tons of ore was sold.

For the year of 1845 £72,704 profit was divided.
When wheal Fanny was started in 1845 the lode was cut only 3 fathoms below the surface.

In March of 1856 with the lode being worked on its full length from Wh Maria to Wh Emma 3389 tons of ore were sampled, an all time record for Cornwall. The 1856 year total was 28,836 tons. The only limiting factor on output was transport and storage to the quays at Morwellham.
By 1860 the lode at Anna Maria was up to 45 feet wide and yielding up to 80 tons per fathom.

By 1870 refined arsenic was also being produced from arsenopyrite deposits up to 6 feet thick which lined the copper lode and had previously been left in place as having no value. The mine produced over half the British output and only limited output to avoid depressing the world market price.
By 1880 the copper boom was over. Arsenic production sustained the mine for another 20 years until the original company folded in 1901.

The overall output from 1844 to 1902 had been 736,229 tons copper ore sold for £3,473,046 and 72,279 tons refined arsenic for £625,062.
From 'The Mines of East Cornwall and West Devon, D.B. Barton, 1964.

As a means of estimating current worth, miners wages were then 'a few shillings a week'. So even if you multiply the above figures by 100x you still probably have a very low estimate of the value today.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

19 valid minerals.

Detailed Mineral List:

ⓘ Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
ⓘ Aragonite
Formula: CaCO3
ⓘ Arsenolite
Formula: As2O3
References:
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Cassiterite
Formula: SnO2
ⓘ Chalcanthite
Formula: CuSO4 · 5H2O
References:
Paul De Bondt collection.Identification: Visual Identification
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Childrenite
Formula: Fe2+Al(PO4)(OH)2 · H2O
ⓘ 'Chlorite Group'
ⓘ Cornubite
Formula: Cu5(AsO4)2(OH)4
ⓘ Cornwallite
Formula: Cu5(AsO4)2(OH)4
ⓘ Ferberite
Formula: FeWO4
References:
De Bondt, Paul (n.d.) Personal communication.Identification: Visual Identification
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fluorapatite var. Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
ⓘ Fluorite
Formula: CaF2
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Wolframite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘArsenolite4.CB.50As2O3
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
ⓘFerberite4.DB.30FeWO4
ⓘ'Wolframite Group'4.DB.30 va
Group 5 - Nitrates and Carbonates
ⓘSiderite5.AB.05FeCO3
ⓘAragonite5.AB.15CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘChalcanthite7.CB.20CuSO4 · 5H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘCornwallite8.BD.05Cu5(AsO4)2(OH)4
ⓘCornubite8.BD.30Cu5(AsO4)2(OH)4
ⓘFluorapatite
var. Carbonate-rich Fluorapatite
8.BN.05Ca5(PO4,CO3)3(F,O)
ⓘ8.BN.05Ca5(PO4)3F
ⓘChildrenite8.DD.20Fe2+Al(PO4)(OH)2 · H2O
Group 9 - Silicates
ⓘAllophane9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Hⓘ ChalcanthiteCuSO4 · 5H2O
Hⓘ ChildreniteFe2+Al(PO4)(OH)2 · H2O
Hⓘ CornubiteCu5(AsO4)2(OH)4
Hⓘ CornwalliteCu5(AsO4)2(OH)4
Hⓘ GypsumCaSO4 · 2H2O
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Cⓘ SideriteFeCO3
OOxygen
Oⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Oⓘ ArsenoliteAs2O3
Oⓘ AragoniteCaCO3
Oⓘ Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Oⓘ CassiteriteSnO2
Oⓘ ChalcanthiteCuSO4 · 5H2O
Oⓘ ChildreniteFe2+Al(PO4)(OH)2 · H2O
Oⓘ CornubiteCu5(AsO4)2(OH)4
Oⓘ CornwalliteCu5(AsO4)2(OH)4
Oⓘ FerberiteFeWO4
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
FFluorine
Fⓘ Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ FluoriteCaF2
AlAluminium
Alⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Alⓘ ChildreniteFe2+Al(PO4)(OH)2 · H2O
SiSilicon
Siⓘ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Pⓘ ChildreniteFe2+Al(PO4)(OH)2 · H2O
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcanthiteCuSO4 · 5H2O
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ Fluorapatite var. Carbonate-rich FluorapatiteCa5(PO4,CO3)3(F,O)
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ FluoriteCaF2
Caⓘ GypsumCaSO4 · 2H2O
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChildreniteFe2+Al(PO4)(OH)2 · H2O
Feⓘ FerberiteFeWO4
Feⓘ HematiteFe2O3
Feⓘ PyriteFeS2
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcanthiteCuSO4 · 5H2O
Cuⓘ CornubiteCu5(AsO4)2(OH)4
Cuⓘ CornwalliteCu5(AsO4)2(OH)4
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenoliteAs2O3
Asⓘ ArsenopyriteFeAsS
Asⓘ CornubiteCu5(AsO4)2(OH)4
Asⓘ CornwalliteCu5(AsO4)2(OH)4
SnTin
Snⓘ CassiteriteSnO2
WTungsten
Wⓘ FerberiteFeWO4

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