Wheal Herland (Old Herland Mine; Manor Mine; North Wheal Herland), Rosewarne and Herland United Mines (Rosewarne and Herland Mine; incl. Wheal Fancy; Wheal Pleasure), Gwinear, Gwinear-Gwithian, Cornwall, England, UKi
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Key
Latitude & Longitude (WGS84):
50° 10' 59'' North , 5° 22' 34'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW590370
Locality type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Leedstown | 267 (2017) | 2.9km |
| Hayle | 8,210 (2017) | 3.2km |
| Uny Lelant | 1,056 (2017) | 4.6km |
| Camborne | 22,500 (2012) | 6.5km |
| Germoe | 175 (2017) | 7.5km |
Wheal Herland, locally known as Manor Mine, occupied the western and central sections of the Rosewarne and Herland sett. The workings extended from NE of Drannack Mill to south of Gwinear, a distance of about 1,000 yards, and the extensive dumps between the fields in this area belong almost entirely to this mine. To the southeast, it was adjoined by Prince George Mine, to the west by Drannack Mine, and to the northwest by Wheal Fancy and Wheal Pleasure, two small 18th century workings which cannot now be identified. Though, the boundaries of the individual setts are not discernible, because plans of the workings do not exist.
Wheal Herland was first worked in 1717, and again from 1726 until 1762, but Hamilton Jenkin records that there were further small sales of ore until 1778. During this period, the mine was developed to a depth of 120 fms, and it was rich enough to install a 70 inch Newcombe pumping engine. In 1790, it was restarted under the name of North Herland Mine, and in the following year, it was amalgamated with other workings in the area under the name of Rosewarne and Herland United Mines. The group continued operations until 1808, and was also worked for a short period of time around 1815-1816. In 1824, Wheal Herland was restarted and worked until 1843.
The sett is reputed to have been traversed by several more or less ENE-trending lodes, called Badger, Bull's, Colenso's, Convocation, Manor Old, North Herland, Pleasure and Wheal Baily lodes, and two EW-trending lodes, called Fancy Caunter Lode and Herland Caunter Lode, which intersected all other lodes at acute angles. Herland Caunter Lode carried rich zinc ores at the intersections. North Herland Lode was the only tin-bearing lode in the sett. It was gossany in the upper part and carried chalcopyrite, cuprite, cassiterite and pyrite at depth. Manor Old Lode, south of North Herland Lode and coursing parallel to it, was a rich copper lode. It dips towards North Herland Lode and intersects with it at a depth of 85 fms.
All lodes are heaved by several NW-trending crosscourses. Some of them were filled with clay (fluccans), but others were quartz veins that carried small quantities of galena and stibnite. In 1799, silver was discovered on the 90 fm (166 m) level (120 fm below surface) in Manor Old Lode at the intersection with Convocation crosscourse, a quartz-filled vein averaging 2 feet (60 cm) in width which heaved the lode 18 inches (45 cm) south. The silver ores occurred in cracks confined to a 6-8 inches (15-20 cm) wide zone on the eastern side of the crosscourse, that extended 6 ft (1.8 m) north and 12 ft (3.6 m) south of the intersection. At depth, this zone continued to the 120 fm (221 m) level and widened to about 45 ft (13.5 m), but the ore gradually became poorer as the distance from the lode increased. It was composed of acanthite, chlorargyrite, pyrargyrite and capillary native silver, mixed with arsenopyrite, galena, native bismuth, cobaltite, and smaltite. Specimens were given to Philip Rashleigh, a leading mineral collector in the late 18th century, and Rev. William Gregor, the discoverer of titanium. A part of the ore was smelted and tested on the mine, but the principal part was sold in Bristol.
Following this discovery, other crosscourses were tried, and silver ore was also found where Manor Old Lode intersected with Rusty crosscourse, though this ore was not as rich. Occurrences of silver deposits of this type in Cornwall are not uncommon, but they are generally of a very limited extent.
The early production figures of Wheal Herland are not complete, but it is said to have sold 156 tons of silver ore before 1814. Old Herland Mine produced 677 tons of copper ore in 1794, and also sold copper ore for £7,352 in 1756. Between 1816 and 1843, Wheal Herland raised 18,500 tons of 10.75% copper ore. Production figures in conjunction with other mines are listed for Rosewarne and Herland United Mines.
Select Mineral List Type
Standard Detailed Gallery Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Acanthite Formula: Ag2S Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 20; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 107 |
ⓘ Arsenopyrite Formula: FeAsS Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; 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.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
| ⓘ Bismite Formula: Bi2O3 Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108. |
| ⓘ Bismuth Formula: Bi Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 24; 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.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
| ⓘ Bismuthinite Formula: Bi2S3 Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; 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.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
ⓘ 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. |
ⓘ Chalcopyrite Formula: CuFeS2 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. |
| ⓘ Chlorargyrite Formula: AgCl Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108. |
| ⓘ Cobaltite Formula: CoAsS Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ Cuprite Formula: Cu2O Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ 'Feldspar Group' Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp. |
| ⓘ Galena Formula: PbS Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152 |
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications |
| ⓘ 'Limonite' Formula: (Fe,O,OH,H2O) 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. |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 49-128 |
| ⓘ 'Manganese Oxides' Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ Olivenite Formula: Cu2(AsO4)(OH) Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
ⓘ Pyrargyrite Formula: Ag3SbS3 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.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
ⓘ Pyrite Formula: FeS2 Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), 158 pp. |
| ⓘ Quartz Formula: SiO2 Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152 |
| ⓘ Quartz var: Formula: SiO2 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. |
| ⓘ 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. |
ⓘ Silver Formula: Ag Reference: Carne, J. (1818): Transactions of the Royal Geological Society of Cornwall 1, 118-126; Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 20; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
| ⓘ Silver var: Formula: (Ag,Sb), Sb < 5% Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 20 |
| ⓘ Skutterudite Formula: CoAs3 Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; 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.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
| ⓘ Sphalerite Formula: ZnS Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ Stibnite Formula: Sb2S3 Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp. |
| ⓘ Tenorite Formula: CuO 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. |
| ⓘ Torbernite Formula: Cu(UO2)2(PO4)2 · 12H2O Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ Uraninite Formula: UO2 Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ Uraninite var: Formula: UO2 Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152. |
| ⓘ '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. |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Bismuth | 1.CA.05 | Bi |
| ⓘ | Silver | 1.AA.05 | Ag |
| ⓘ | var: Antimonial Silver | 1.AA.05 | (Ag,Sb), Sb < 5% |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Bismuthinite | 2.DB.05 | Bi2S3 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Skutterudite | 2.EC.05 | CoAs3 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Bismite | 4.CB.60 | Bi2O3 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var: Rock Crystal | 4.DA.05 | SiO2 |
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Uraninite | 4.DL.05 | UO2 |
| ⓘ | var: Pitchblende | 4.DL.05 | UO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Olivenite | 8.BB.30 | Cu2(AsO4)(OH) |
| ⓘ | Torbernite | 8.EB.05 | Cu(UO2)2(PO4)2 · 12H2O |
| Group 9 - Silicates | |||
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | Schorl | 9.CK.05 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | '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 | |||
| ⓘ | Silver | 1.1.1.2 | Ag |
| Semi-metals and non-metals | |||
| ⓘ | Bismuth | 1.3.1.4 | Bi |
| Group 2 - SULFIDES | |||
| AmBnXp, with (m+n):p = 2:1 | |||
| ⓘ | Acanthite | 2.4.1.1 | Ag2S |
| AmXp, with m:p = 1:1 | |||
| ⓘ | Galena | 2.8.1.1 | PbS |
| ⓘ | Sphalerite | 2.8.2.1 | ZnS |
| AmBnXp, with (m+n):p = 1:1 | |||
| ⓘ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 2:3 | |||
| ⓘ | Bismuthinite | 2.11.2.3 | Bi2S3 |
| ⓘ | Stibnite | 2.11.2.1 | Sb2S3 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Arsenopyrite | 2.12.4.1 | FeAsS |
| ⓘ | Cobaltite | 2.12.3.1 | CoAsS |
| ⓘ | Pyrite | 2.12.1.1 | FeS2 |
| ⓘ | Skutterudite | 2.12.17.1 | CoAs3 |
| Group 3 - SULFOSALTS | |||
| ø = 3 | |||
| ⓘ | Pyrargyrite | 3.4.1.2 | Ag3SbS3 |
| Group 4 - SIMPLE OXIDES | |||
| A2X | |||
| ⓘ | Cuprite | 4.1.1.1 | Cu2O |
| AX | |||
| ⓘ | Tenorite | 4.2.3.1 | CuO |
| A2X3 | |||
| ⓘ | Bismite | 4.3.10.2 | Bi2O3 |
| AX2 | |||
| ⓘ | Cassiterite | 4.4.1.5 | SnO2 |
| Group 5 - OXIDES CONTAINING URANIUM OR THORIUM | |||
| AXO2·xH2O | |||
| ⓘ | Uraninite | 5.1.1.1 | UO2 |
| Group 9 - NORMAL HALIDES | |||
| AX | |||
| ⓘ | Chlorargyrite | 9.1.4.1 | AgCl |
| Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN | |||
| ⓘ | Malachite | 16a.3.1.1 | Cu2(CO3)(OH)2 |
| Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES | |||
| AB2(XO4)2·xH2O, containing (UO2)2+ | |||
| ⓘ | Torbernite | 40.2a.13.1 | Cu(UO2)2(PO4)2 · 12H2O |
| Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN | |||
| A2(XO4)Zq | |||
| ⓘ | Olivenite | 41.6.6.1 | Cu2(AsO4)(OH) |
| 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 | 56.1.2.1 | Zn4Si2O7(OH)2 · H2O |
| Group 61 - CYCLOSILICATES Six-Membered Rings | |||
| Six-Membered Rings with borate groups | |||
| ⓘ | Schorl | 61.3.1.10 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Limonite' | - | (Fe,O,OH,H2O) |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | Quartz var: Rock Crystal | - | SiO2 |
| ⓘ | Silver var: Antimonial Silver | - | (Ag,Sb), Sb < 5% |
| ⓘ | Uraninite var: Pitchblende | - | UO2 |
| ⓘ | 'Wolframite' | - | (Fe2+)WO4 to (Mn2+)WO4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Limonite | (Fe,O,OH,H2O) |
| H | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Olivenite | Cu2(AsO4)(OH) |
| B | Boron | |
| B | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Wolframite | (Fe2+)WO4 to (Mn2+)WO4 |
| O | ⓘ Bismite | Bi2O3 |
| O | ⓘ Limonite | (Fe,O,OH,H2O) |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Quartz (var: Rock Crystal) | SiO2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Uraninite (var: Pitchblende) | UO2 |
| O | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Olivenite | Cu2(AsO4)(OH) |
| O | ⓘ Uraninite | UO2 |
| Na | Sodium | |
| Na | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | Aluminium | |
| Al | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | Silicon | |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Quartz (var: Rock Crystal) | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| P | Phosphorus | |
| P | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Bismuthinite | Bi2S3 |
| S | ⓘ Pyrargyrite | Ag3SbS3 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Galena | PbS |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stibnite | Sb2S3 |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| Mn | Manganese | |
| Mn | ⓘ Wolframite | (Fe2+)WO4 to (Mn2+)WO4 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Wolframite | (Fe2+)WO4 to (Mn2+)WO4 |
| Fe | ⓘ Limonite | (Fe,O,OH,H2O) |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Co | ⓘ Skutterudite | CoAs3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Tenorite | CuO |
| Cu | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Zn | Zinc | |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Cobaltite | CoAsS |
| As | ⓘ Skutterudite | CoAs3 |
| As | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Chlorargyrite | AgCl |
| Ag | ⓘ Pyrargyrite | Ag3SbS3 |
| Ag | ⓘ Silver | Ag |
| Ag | ⓘ Silver (var: Antimonial Silver) | (Ag,Sb), Sb < 5% |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Sb | Antimony | |
| Sb | ⓘ Pyrargyrite | Ag3SbS3 |
| Sb | ⓘ Silver (var: Antimonial Silver) | (Ag,Sb), Sb < 5% |
| Sb | ⓘ Stibnite | Sb2S3 |
| W | Tungsten | |
| W | ⓘ Wolframite | (Fe2+)WO4 to (Mn2+)WO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Bi | Bismuth | |
| Bi | ⓘ Bismuth | Bi |
| Bi | ⓘ Bismuthinite | Bi2S3 |
| Bi | ⓘ Bismite | Bi2O3 |
| U | Uranium | |
| U | ⓘ Uraninite (var: Pitchblende) | UO2 |
| U | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| U | ⓘ Uraninite | UO2 |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
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| Cisuralian |
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References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Carne, J. (1818): On the Discovery of Silver in the Mines of Cornwall. Transactions of the Royal Geological Society of Cornwall 1, 118-126.
Henwood, W.J. (1843): On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall 5, 1-386.
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 151-152 (see also corrigenda in the 1994 reprint).
Other Regions, Features and Areas containing this locality
British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- England
- Cornwall
- Gwinear Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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Wheal Herland, Rosewarne and Herland United Mines, Gwinear, Gwinear-Gwithian, Cornwall, England, UK