Polmear Mine (incl. South Polmear Mine), Duporth, St Austell Bay, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Polmear Mine (incl. South Polmear Mine) | Mine |
| Duporth | - not defined - |
| St Austell Bay | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 19' 50'' North , 4° 45' 55'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX032516
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| St Austell | 25,447 (2017) | 1.4km |
| Par | 9,462 (2015) | 5.0km |
| Mevagissey | 2,117 (2017) | 6.7km |
| Luxulian | 388 (2017) | 6.8km |
| Bugle | 2,873 (2017) | 7.5km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| British Micromount Society, Devon and Cornwall Branch Meetings | Liskeard, Cornwall | 25km |
Mindat Locality ID:
7735
Long-form identifier:
mindat:1:2:7735:7
GUID (UUID V4):
38d5da73-c4e4-439f-9d0c-6ee5d31a4011
Polmear (SX032516), a copper mine that also raised ores of lead, silver, zinc and iron, lies about one mile east southeast of St Austell. Includes South Polmear (SX030515).
Spargo (1865) wrote "...The soil was broken in 1842, but the present Company took the works in hand about 10 years ago. The results have disappointed the expectations, inasmuch as the rich discoveries of copper have not lasted. The miners call it a " bunchy " mine. Considering the shallowness of the works, the returns may be regarded as fair. One could wish to see a trial 50 fathoms deeper, but the Company want heart to sink, so they are content to see what they can find at shallow points. A new wheel for pumping water has lately been set to work at the eastern side of the sett, where the prospects are good. The lodes are large, numerous, and promising".... "Minerals sold in 1864, 753 tons 1 cwt 0 qrs. of copper ore for Β£3,859 3s 4d, 88 tons of mundic [pyrite] for Β£74 13s 9d making a total of Β£3,933 17s 1d".
Records of output (Dines 1956):
Polmear: 1856-69 & 1998-1900, 6459 tons of 8% copper ore, 77 tons of 33% zinc ore, 1733 tons of pyrite, 64 tons arsenopyrite and 5cwt black tin.
South Polmear: 1869-76, 34 tons of 5.5% copper ore; 1870-80, 14 tons of 50% lead ore, 150 oz of silver and 38 tons of pyrite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Arsenopyrite Formula: FeAsS |
| β Bornite Formula: Cu5FeS4 |
| β Cassiterite Formula: SnO2 |
| β Chalcopyrite Formula: CuFeS2 |
| β 'Chlorite Group' |
| β Galena Formula: PbS |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Bornite | 2.BA.15 | Cu5FeS4 |
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| β | Cassiterite | 4.DB.05 | SnO2 |
| Unclassified | |||
| β | 'Chlorite Group' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Cassiterite | SnO2 |
| O | β Quartz | SiO2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Arsenopyrite | FeAsS |
| S | β Bornite | Cu5FeS4 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Galena | PbS |
| S | β Pyrite | FeS2 |
| S | β Sphalerite | ZnS |
| Fe | Iron | |
| Fe | β Arsenopyrite | FeAsS |
| Fe | β Bornite | Cu5FeS4 |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Bornite | Cu5FeS4 |
| Cu | β Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | β Sphalerite | ZnS |
| As | Arsenic | |
| As | β Arsenopyrite | FeAsS |
| Sn | Tin | |
| Sn | β Cassiterite | SnO2 |
| Pb | Lead | |
| Pb | β Galena | PbS |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
| |||||||||||||||||||||
| Cisuralian |
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Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- England
- Cornwall
- St Austell Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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References
