Treamble Mine (incl. Garden Quarry), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UKi
Regional Level Types | |
---|---|
Treamble Mine (incl. Garden Quarry) | Mine (Reclaimed) |
Perran Iron Lode (Great Perran Iron Lode) | Lode |
Perranzabuloe | Civil Parish |
Cornwall | County |
England | Constituent Country |
UK | Country |
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Latitude & Longitude (WGS84):
50° 21' 41'' North , 5° 6' 47'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW786560
Type:
Mine (Reclaimed) - last checked 2020
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Cubert | 771 (2017) | 2.0km |
Perranporth | 3,210 (2017) | 3.6km |
Crantock | 801 (2017) | 4.6km |
Newquay | 20,189 (2017) | 6.7km |
Saint Agnes | 2,820 (2014) | 8.4km |
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 | 47km |
Mindat Locality ID:
43053
Long-form identifier:
mindat:1:2:43053:2
GUID (UUID V4):
f458f249-f576-4458-b7ba-386db6c75c85
An iron mine on the Perran Iron Lode, started in the middle of the 19th century and worked intermittently until the second world war. The lode, which passed about 30 yards south of Treamble farm, was originally worked from two open cuts, located SW and SE of the farm, respectively. When the western pit was excavated, a NS-trending lead lode was exposed which is believed to represent the southern extension of Trebellan lode that also was worked a little further north by North Retallack Mine. The lode is said to have intersected with the Perran Iron Lode, close to which it carried native silver and silver ores.
The pits opened up the lode on an overall length of 235 yards. The extent of workings in the western pit is not exactly known, because it was backfilled early. The eastern pit, also known as Garden quarry, was 60 ft deep and up to 120 ft wide. Later on, shallow shafts were sunk along the strike of the lode, but not much further underground development was carried out. Dines notes that the very limited amount of stoping shown on the mine plans, and the exposures in the eastern pit do not justify the reports by contemporary authors about the amount and quality of the ores raised.
The early period of activity ended around 1892 and the mine lay idle until 1937, when it was taken over by Lloyd's Perran Iron Company. A new pit, 250 yards long and 150 yards wide, was excavated to a depth of about 20 ft in the eastern part of the sett. However, no continuous orebodies were encountered and the lode, which was expected to be about 40 ft wide, was not thicker than 14 ft. In 1940, after about 4,000 tons of ore had been raised, the workings were abandoned and the mine was taken over by the Home Ores Department, who did some further development and continued working it until 1943.
The area has now been converted into a caravan park. The pits are backfilled and there are no traces of the mine workings left. The grid reference marks the site where the eastern pit was located.
From 1859 to 1892, the mine produced 15,300 tons of brown iron ore, 958 tons of mixed brown iron and spathic ore, 32 tons of 75% lead ore, 7 tons of 40% zinc ore and 130 oz of silver. From 1937 to 1940, 4,000 tons of iron ore were raised, and another 15,000 tons of ore are recorded for the last period of activity between 1940 and 1943. In addition, up to 500 tons per year of fullers earth were produced from decomposed killas.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
9 valid minerals.
Detailed Mineral List:
β Chalcopyrite Formula: CuFeS2 |
β Galena Formula: PbS References: |
β Goethite Formula: Ξ±-Fe3+O(OH) |
β 'Limonite' |
β Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
β Pyrite Formula: FeS2 |
β Quartz Formula: SiO2 |
β Siderite Formula: FeCO3 |
β Silver Formula: Ag |
β Sphalerite Formula: ZnS |
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Silver | 1.AA.05 | Ag |
Group 2 - Sulphides and Sulfosalts | |||
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
β | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
β | Goethite | 4.00. | Ξ±-Fe3+O(OH) |
β | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Siderite | 5.AB.05 | FeCO3 |
Group 9 - Silicates | |||
β | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 Β· nH2O |
Unclassified | |||
β | 'Limonite' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Goethite | Ξ±-Fe3+O(OH) |
H | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
C | Carbon | |
C | β Siderite | FeCO3 |
O | Oxygen | |
O | β Goethite | Ξ±-Fe3+O(OH) |
O | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
O | β Quartz | SiO2 |
O | β Siderite | FeCO3 |
Na | Sodium | |
Na | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Mg | Magnesium | |
Mg | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Al | Aluminium | |
Al | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Si | Silicon | |
Si | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Si | β Quartz | SiO2 |
S | Sulfur | |
S | β Chalcopyrite | CuFeS2 |
S | β Galena | PbS |
S | β Pyrite | FeS2 |
S | β Sphalerite | ZnS |
Ca | Calcium | |
Ca | β Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Fe | Iron | |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Goethite | Ξ±-Fe3+O(OH) |
Fe | β Pyrite | FeS2 |
Fe | β Siderite | FeCO3 |
Cu | Copper | |
Cu | β Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Ag | Silver | |
Ag | β Silver | Ag |
Pb | Lead | |
Pb | β Galena | PbS |
Geochronology
Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
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Phanerozoic | ||||||||||||||||||||||
Paleozoic | ||||||||||||||||||||||
Permian | ||||||||||||||||||||||
Guadalupian |
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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 Agnes Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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