Mines with Hydrothermal Deposits

113 linked mines · Geology: Hydrothermal Deposits

Listed only where MineArchive's own research gives a reasonable evidential basis for the connection — not every mine where this geology might plausibly apply.

MineRegionWorkedCommoditiesConnection
Alport Mines Derbyshire 17th century–mid-1800s (mining) Lead (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins within the Peak District orefield's Carboniferous limestone.
Alva Silver Mine (Silver Glen) Clackmannanshire 1712–1716 Silver, Cobalt (well documented example) The mine's own recorded geology explicitly describes a hydrothermal vein system yielding native silver.
Arkendale Mine North Yorkshire From 1882–1905 Lead (well documented example) The Arkengarthdale lead was deposited from mineralising fluids rising along faults and joints through the Carboniferous sequence of the dales.
Ballacorkish Mine Isle of Man Before 1819–1895 Lead, Silver, Zinc, Ochre (well documented example) The mine's own recorded geology explicitly describes lead- and zinc-bearing veins of the Manx mineralised belt.
Barrow Mine Cumbria By the 1680s–1889 Lead, Silver, Zinc (well documented example) Argentiferous galena with blende, cerussite, pyromorphite and pyrite, in a vein believed to be part of the same structure as the Yewthwaite and Thornthwaite lodes.
Bedford United Mine Devon 1841–1890 Copper, Tin, Arsenic, Tungsten (well documented example) The mine's own recorded geology explicitly describes copper-bearing lodes of the Tamar Valley orefield.
Blakethwaite Mine North Yorkshire 1819 (mine)–1878 Lead (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins of the northern Pennine orefield.
Bog Mine Shropshire 1730s–1924 Lead, Silver, Zinc, Barite (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins in the Shropshire lead-mining district.
Botallack Mine Cornwall 1500s–1895 Tin, Lead, Cobalt, Copper, Arsenic, Silver (well documented example) Botallack's tin, copper and arsenic lodes are hydrothermal, formed from fluids driven by the cooling Land's End granite.
Brandelhow Mine Cumbria By 1560s–early 1891 Lead, Copper, Silver, Graphite (well documented example) The mine's own recorded geology explicitly describes lead-, copper-, silver- and graphite-bearing veins within a hydrothermal orefield.
Britannia Copper Mine Gwynedd Around 1800–1916 Copper (well documented example) Copper worked from mineralised veins in the volcanic rocks of the Snowdon massif.
Brownley Hill Mine Cumbria worked from the early 1700s–1966 Lead, Silver, Zinc (well documented example) The mine's own recorded geology explicitly describes the hydrothermal Brownley Hill Vein of the northern Pennine orefield.
CB Mine North Yorkshire 1654–1883 (CB Mining Company) Lead (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead veins of the northern Pennine orefield.
Cae Coch Sulphur Mine Conwy 1607–1942 Pyrite (historical documentary reference) One of the competing readings of the deposit is as a kuroko-type volcanogenic exhalative body, and hollow pyrite tubes in the top half-metre of the bed have been interpreted as fossilised black smokers. The link is to that contested interpretation, not a settled classification — the sulphur-isotope and cobalt-nickel evidence points away from a volcanogenic origin.
Cambokeels Mine County Durham 1868–1989 Fluorspar, Lead (well documented example) The mine's own recorded geology explicitly describes the hydrothermal Slitt Vein of the northern Pennine orefield.
Carn Galver Mine Cornwall Early 19th century–1875 Tin (well documented example) The mine's own recorded geology explicitly describes a hydrothermal tin lode within the Cornubian orefield.
Chewton Mineries Somerset 1541–1883 Lead (well documented example) The mine's own recorded geology explicitly describes lead veins within the Triassic Dolomitic Conglomerate of the Mendip orefield.
Coalcleugh Northumberland 17th century–1878 Lead, Zinc, Fluorspar (well documented example) The mine's own recorded geology explicitly describes lead- and zinc-bearing veins of the Alston Block, part of the northern Pennine orefield.
Cobscar Mill North Yorkshire 1762–c. 1830 Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead veins of the northern Pennine orefield.
Cook's Kitchen Mine Cornwall By early 18th century–1913 Copper, Tin, Arsenic (well documented example) The mine's own recorded geology explicitly describes copper and tin lodes within the hydrothermal Cornubian orefield.
Craig-y-Mwyn Mine Powys 1692–19th century (exact final date unrecorded) Lead (well documented example) The mine's own recorded geology explicitly describes a lead vein within the hydrothermal Central Wales orefield.
Cwm Elan Mine Powys 1796 (discovery)–September 1877 Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes a lead- and zinc-bearing vein within the hydrothermal Central Wales orefield.
Diana Maria Mine County Durham 2017 (opencast)–Still active Fluorspar (well documented example) The fluorite belongs to the Northern Pennine Orefield's mineralisation, emplaced in the Carboniferous limestone sequence by circulating hot fluids rather than by any magmatic body at the site.
Ding Dong Mine Cornwall documented from early 17th century–1928 Tin, Copper (well documented example) The mine's own recorded geology explicitly describes tin- and copper-bearing lodes of the Land's End granite, part of the Cornubian orefield.
Dovegang Mine Derbyshire By 1652–19th century Lead (well documented example) The mine's own recorded geology explicitly describes a hydrothermal lead vein system of the Derbyshire orefield.
Dowgang Mine Cumbria By 1773–by 1902 Lead, Zinc (well documented example) Dowgang worked the North Pennine orefield, whose lead and zinc were deposited from mineralising fluids rising along faults through the Carboniferous sequence.
Drws-y-Coed Copper Mine Gwynedd Medieval (recorded 1284)–1903 Copper (well documented example) The mine's own recorded geology explicitly describes a hydrothermal copper mineralised system hosted in Cambrian rocks.
East Wheal Rose Cornwall 1812 (discovery)–1886 Lead, Silver, Zinc (well documented example) The mine's own recorded geology explicitly describes lead-bearing lodes within the hydrothermal Cornubian orefield.
Ecton Copper Mines Staffordshire Bronze Age–1891 Copper, Lead, Zinc (well documented example) Exploits near-vertical, pipe-like hydrothermal copper-lead-zinc mineralisation, a less common deposit shape than a simple vein.
Esgair Mwyn Mine Ceredigion 1746–1994 Lead, Copper, Silver, Zinc (well documented example) The mine's own recorded geology explicitly describes a lead-, silver-, zinc- and copper-bearing vein within the hydrothermal Central Wales orefield.
Excelsior Mine Cornwall early 1850s–1946 (mining) Tin, Copper, Tungsten (well documented example) The mine's own recorded geology explicitly describes tin- and copper-bearing lodes of the Cornubian granite-related orefield.
Foss Mine Perth and Kinross 1984–2021 Barite (well documented example) The mine's own recorded geology explicitly describes a syn-sedimentary, exhalative hydrothermal baryte deposit.
Frank Mills Mine Devon 1847–1880 Lead, Silver, Barite, Fluorspar, Iron (well documented example) The mine's own recorded geology explicitly describes a hydrothermal, granite-related silver-lead vein system.
Garths Ness Mine Shetland Islands c. 1800–1920s Copper, Iron (well documented example) A massive sulphide body precipitated from hydrothermal vents — black smokers — on an ancient sea floor 580 million years ago, mostly pyrrhotite with some chalcopyrite.
Geevor Tin Mine Cornwall 1911–1990 Tin, Copper (well documented example) Geevor's cassiterite-bearing veins are hydrothermal, formed in and around granite intruded into Devonian killas.
Glasdir Mine Gwynedd From c. 1852 (surface)–1915 Copper, Silver, Gold (well documented example) The mine's own recorded geology explicitly describes copper sulphide mineralisation of the Dolgellau gold belt.
Glengonnar South Lanarkshire 1239–1940 Lead, Silver, Gold (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins of the Leadhills-Wanlockhead orefield.
Golden Dagger Mine Devon worked from 1879–November 1930 Tin (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal tin mineralisation of the Dartmoor batholith.
Goldscope Mine Cumbria 1564–late 19th century Copper, Lead, Silver, Gold (well documented example) The mine's own recorded geology explicitly describes copper- and lead-bearing hydrothermal veins.
Great Dowgas Mine Cornwall c. 1719–1913 Tin, Copper, Cobalt, Nickel (well documented example) The lodes are described as filled mainly with quartz and pyrite, with cassiterite occurring sporadically — the mineral assemblage and irregular tin distribution characteristic of a hydrothermal vein deposit.
Great Orme Copper Mines Conwy c. 1700 BC–c. 600 BC Copper, Lead (well documented example) Hydrothermal fluids moving along faults and fractures deposited the copper veins worked here.
Great Work Mine Cornwall By 1538–1939 Tin, Copper, Lead (well documented example) The mine's cassiterite-bearing lodes, worked within the Godolphin-Tregonning granite with copper and minor lead, are a documented example of granite-related hydrothermal tin-copper mineralisation of the type this record describes.
Greenburn Mine Cumbria From late 17th century–c. 1885 Copper (well documented example) The mine's own recorded geology explicitly describes a hydrothermal copper mineralised system associated with the Borrowdale Volcanic Group.
Greenside Mine Cumbria 1825–1962 Lead, Silver (well documented example) Worked a mineral vein deposited by hydrothermal fluids at 110-130°C during the Carboniferous period, filling a north-south fault.
Grogwynion Mine Ceredigion By 1744–1889 Lead (well documented example) The mine's own recorded geology explicitly describes a lead vein within the hydrothermal Central Wales orefield.
Groverake Mine County Durham From 1819–1999 Fluorspar, Lead, Iron (well documented example) Groverake's lead and fluorspar came from Northern Pennine Orefield hydrothermal veins, zoned around the concealed Weardale Granite as a heat source.
Gunnislake Clitters Mine Cornwall c. 1820–1919 Copper, Tin, Arsenic, Tungsten (well documented example) The record turns on lodes that gave copper and tin first and arsenic and tungsten afterwards, the sequence of products following what the mineralisation yielded as the metal ores were exhausted.
Hafna Mine Conwy to about 1915 Lead, Zinc, Pyrite (well documented example) The Gwydir lead-zinc mineralisation was deposited from hot fluids moving through fractures in the Ordovician sequence, with quartz and calcite gangue accompanying the ore minerals.
Hartsop Hall Mine Cumbria By 1684–1942 Lead, Silver (well documented example) Argentiferous galena with baryte, quartz, blende, fluorspar and wulfenite.
Herland Mine Cornwall worked from at least 1726–1874 Copper, Silver (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal copper mineralisation of west Cornwall.
Herodsfoot Mine Cornwall Early 1700s–1884 Lead, Silver (well documented example) The mine's own recorded geology explicitly describes silver-lead lodes within the hydrothermal, granite-related Cornubian orefield.
Hillocks Mine Derbyshire post-medieval–by 1900 Lead (well documented example) The mine works a pipe — the Whalf Pipe, a mineralised cavern in the limestone — where it surfaces at Monyash, the shaft below reaching a series of pipe workings.
Hilton and Scordale Mines Cumbria By the 18th century–after 1919 Lead, Barite, Fluorspar, Witherite (well documented example) The Scordale veins and flats belong to the northern Pennine orefield, deposited from mineralising fluids in Carboniferous limestone.
Hopping Pipe Mine Derbyshire By 1901–c. 1960 Lead, Fluorspar (historical documentary reference) Recorded by the county HER as a pipe working -- a mineralised cavity in the limestone -- carrying both lead ore and fluorspar.
Huglith Mine Shropshire c. 1800–1945 Barite, Copper (well documented example) The Geological Conservation Review reads the Huglith barite as a late phase of a hydrothermal event whose saline fluids rose through a connected fracture system and mixed with sulphate-rich water higher in the veins.
Killhope Lead Mine County Durham 1818–1910 Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead veins of the northern Pennine orefield.
King Edward Mine (South Condurrow) Cornwall 1844–1896 Tin, Copper (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal tin and copper mineralisation of the Camborne-Redruth district.
Ladywash Mine Derbyshire 1714–1979 Lead, Fluorspar (well documented example) The mine's own recorded geology explicitly describes the hydrothermal Hucklow Edge vein system of the Derbyshire orefield.
Levant Mine Cornwall 1787–1930 Tin, Arsenic, Copper (well documented example) Levant's tin and copper lodes are hydrothermal, formed from fluids driven by the cooling Land's End granite.
Llywernog Mine Ceredigion 1742 (vein discovered)–1891 (lead) Lead, Silver, Zinc (well documented example) The mine's own recorded geology explicitly describes a lead- and silver-bearing vein within the Cambrian Mountains orefield.
Loggerheads Denbighshire worked from at least the 18th century–19th century Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead and zinc mineralisation within karstic limestone.
Longstone Edge Derbyshire worked from at least the 18th century (lead veins)–2009 Fluorspar, Lead, Barite (well documented example) The mine's own recorded geology explicitly describes lead, fluorspar and barytes mineralisation deposited by a hydrothermal system.
Middlecleugh Mine Cumbria After 1758–by 1920 Lead, Zinc (historical documentary reference) Part of the North Pennine orefield, whose lead and zinc veins are hydrothermal fills in the Carboniferous succession of the Alston Block.
Middleton Tyas Copper Mine North Yorkshire From the 15th century–mid-18th century (exact date unrecorded) Copper (well documented example) The mine's own recorded geology explicitly describes richly but patchily mineralised copper veins.
Milldam Mine Derbyshire 1885–October 2023 Lead, Zinc, Barite, Fluorspar (well documented example) The South Pennine orefield fluorspar and baryte were deposited from warm basinal brines moving through the limestone, not from any magmatic source.
Mount Wellington Mine Cornwall 1976–1978 (initial closure) Tin (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal tin mineralisation of the Gwennap district.
Mulreesh Lead Mines Argyll and Bute 1360–1900 Lead, Silver (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins formed alongside basalt dykes cutting through limestone.
Nant-y-Garw Lead Mine Powys 1877 (vein discovered)–1899 Lead (well documented example) The mine's own recorded geology explicitly describes a lead-bearing vein within the Cambrian Mountains orefield.
New Consols Mine Cornwall From the 19th century–1953 Tin, Copper, Arsenic, Lead, Silver (well documented example) The mine's own recorded geology explicitly describes copper, tin, lead and silver lodes within the hydrothermal Cornubian orefield.
New Glencrieff Mine Dumfries and Galloway 1718–1958 Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes the lead- and zinc-bearing New Glencrieff Vein of the Leadhills-Wanlockhead orefield.
Old Gang Mines North Yorkshire 18th century–1899-1903 Lead (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins of the northern Pennine orefield, the same mineralising system described in this record.
Penberthy Croft Mine Cornwall 1798–late 1840s Tin, Copper, Arsenic, Lead (well documented example) The lode runs parallel to a quartz-feldspar porphyry elvan dyke, the granite-driven hydrothermal mineralisation typical of west Cornwall, and carries tin, copper and lead minerals together.
Pennerley Mine Shropshire By the 18th century–1884 Lead, Barite (well documented example) The mine's own recorded geology explicitly describes lead veins within the hydrothermal Shelve orefield.
Poldice Mine Cornwall By 1512–1930 Copper, Tin, Arsenic (well documented example) The mine's own recorded geology explicitly describes copper and tin lodes within the hydrothermal Cornubian orefield.
Priddy (St Cuthbert's) Lead Works Somerset AD 49 (Roman)–1908 Lead, Silver (well documented example) The mine's own recorded geology explicitly describes lead veins within the Triassic Dolomitic Conglomerate of the Mendip orefield.
Rampgill Mine Cumbria 1690 (Rampgill Vein discovered)–1949 Lead, Zinc (well documented example) The mine's own recorded geology explicitly describes lead- and zinc-bearing structures in the Northern Pennine orefield's Great Limestone.
Roughton Gill Mine Cumbria 12th century (earliest possible)–17th century Copper, Silver, Zinc, Barite, Lead (well documented example) The mine's own recorded geology explicitly describes copper- and lead-bearing veins of the Caldbeck Fells.
Sark's Hope Silver Mine Sark 1833 (Le Pot)–1845 (mining ceased) Silver, Copper, Lead (well documented example) A hydrothermal sulphide vein: pyrite, galena, chalcopyrite and the tennantite-tetrahedrite series with silver sulphosalts, in a hematitic quartz and calcite gangue.
Scraithole Mine Northumberland By the 19th century–1981 Lead, Zinc, Witherite (historical documentary reference) The sphalerite and witherite the mine's last working tried to separate are both hydrothermal vein minerals of the Alston Block.
Silver Gill Mine Cumbria 1020-1200–late Elizabethan period Lead, Copper, Silver (well documented example) The mine's own recorded geology explicitly describes lead-, copper- and silver-bearing veins within a hydrothermal orefield.
Sir Francis Level (Lownathwaite Mine) North Yorkshire 1864–1882 Lead (well documented example) The mine's own recorded geology explicitly describes the Fairfold Vein as part of the hydrothermal, non-magmatic North Pennine orefield.
South Caradon Mine Cornwall 1836–1885 Copper (well documented example) The mine's own recorded geology explicitly describes copper lodes within the hydrothermal, granite-related Cornubian orefield.
South Crofty Cornwall 1592–1998 Tin, Copper (well documented example) South Crofty is a classic Cornish granite-driven hydrothermal vein system, the mechanism this geology record describes.
South Hooe Mine Devon 13th century–1885 Lead, Silver (well documented example) The mine's own recorded geology explicitly describes silver-bearing lead lodes of the Tamar Valley orefield.
Speedwell Cavern Derbyshire 1771–1790 Lead (well documented example) The mine's own recorded geology explicitly describes a hydrothermal lead-bearing vein in the Castleton orefield.
Surrender Mine North Yorkshire before 1720–1880 Lead (well documented example) The mine's own recorded geology explicitly describes lead-bearing veins of the northern Pennine orefield.
Talargoch Mine Flintshire From 1303–1884 (underground) Lead, Zinc (well documented example) The mine's geology field explicitly describes non-magmatic, low-temperature hydrothermal lead-zinc mineralisation in Carboniferous limestone, the same style as the Pennine orefield.
Tankerville Mine Shropshire From early 19th century–1911-13 Lead, Silver, Zinc, Barite (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead mineralisation of the Shelve orefield.
Threlkeld Quarry and Mine Cumbria 1870–1982 Granite, Lead, Zinc, Barite (well documented example) The British Geological Survey attributes the district’s lead–zinc mineralisation, Threlkeld included, to periods of hydrothermal activity generated by the Lake District batholith, and assigns the lead–zinc veins an Early Carboniferous age.
Tilberthwaite Cumbria worked from the late 16th/early 17th century (Elizabethan)–1942 (copper) Copper, Lead, Slate (well documented example) The mine's own recorded geology explicitly describes lead and copper mineralisation associated with the Coniston Fault.
Tincroft Mine Cornwall By the 1680s–1921 (South Tincroft) Copper, Tin (well documented example) The mine's own recorded geology explicitly describes copper and tin lodes within the hydrothermal Cornubian orefield.
Tresavean Mine Cornwall 1737–1928 Copper, Tin, Arsenic (well documented example) The mine's own recorded geology explicitly describes copper- and tin-bearing lodes of the Cornubian granite-related Camborne-Redruth orefield.
Tyndrum Mines Stirling 1741 (vein discovered)–1926 Lead, Silver, Zinc (well documented example) The mine's own recorded geology explicitly describes lead- and zinc-bearing veins within the hydrothermal Grampian orefield.
Vigra Mine Gwynedd 1833–c. 1910 (little work after 1879) Gold, Copper (well documented example) The mine's own recorded geology explicitly describes non-granite-related hydrothermal gold mineralisation of the Dolgellau gold belt.
Vitifer Mine (Birch Tor and Vitifer) Devon documented from 1750 (Vitifer)–1925 Tin (well documented example) The mine's own recorded geology explicitly describes tin-bearing veins within the hydrothermal, granite-related Dartmoor orefield.
Wheal Agar Cornwall by 1883 Copper, Tin, Arsenic (well documented example) The record turns on the mine's returns following the classic Camborne-Redruth sequence, copper and tin together and arsenic added later, from lodes on the belt worked by East Pool, Tincroft and South Crofty.
Wheal Basset (Basset Mines) Cornwall From 1815–1918 Tin, Copper (well documented example) The mine's own recorded geology explicitly describes tin- and copper-bearing lodes within the hydrothermal Cornubian orefield.
Wheal Buller Cornwall worked from 1819–1875 Copper, Tin (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal copper and tin mineralisation of the Camborne-Redruth district.
Wheal Edward Cornwall From 1821–1893 Copper, Tin, Uranium (well documented example) The mine's own recorded geology explicitly describes hydrothermal copper and tin lodes within the Cornubian orefield.
Wheal Fortune Cornwall 1855–1912 Tin, Copper, Arsenic, Tungsten, Zinc (well documented example) The mine's own geology field explicitly describes a hydrothermal tin-vein mineralisation phase, sourced to the GCR account: hot fluids following structural weaknesses with the elvan dyke acting as a channel-way.
Wheal Friendship Devon late 18th century–1950s Copper, Tin, Arsenic, Lead (well documented example) The mine's own recorded geology explicitly describes copper, tin and arsenic-bearing lodes associated with the Dartmoor granite, part of the Cornubian orefield.
Wheal Grenville Cornwall 1820s–1920 Tin, Copper (well documented example) The mine's own recorded geology explicitly describes tin- and copper-bearing lodes on the western extremity of the Great Flat Lode.
Wheal Kitty Cornwall From 1758–1930 Tin, Copper, Iron (well documented example) The mine's own recorded geology explicitly describes tin-, copper- and iron pyrite-bearing lodes within the hydrothermal Cornubian orefield.
Wheal Maid Cornwall 1782–1870s Copper, Tin, Arsenic (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal copper mineralisation of the Gwennap district.
Wheal Mary Ann Cornwall 1845–c. 1875 Lead, Silver, Fluorspar (well documented example) Le Neve Foster's 1874 account describes the lode as a fissure vein repeatedly reopened and refilled by successive hydrothermal mineral deposition (cab/chalcedony, quartz, galena, chalybite, fluorspar, calc spar), with a documented paragenetic sequence.
Wheal Peevor Cornwall c. 1701–1950s Tin, Copper, Tungsten (well documented example) The mine's own recorded geology explicitly describes granite-related hydrothermal copper and tin mineralisation of the Camborne-Redruth district.
Wheal Prosper Cornwall c. 1860–1866 Copper, Tin (well documented example) The mine's own recorded geology explicitly describes the Porthcew lode as part of the hydrothermal, granite-related Cornubian orefield.
Wheal Trewavas Cornwall by 1834–1846 Copper (well documented example) The mine's own recorded geology explicitly describes copper lodes as part of the hydrothermal, granite-related Cornubian orefield.
Wheal Uny Cornwall worked from c. 1800–1893 Copper, Tin (well documented example) The mine's own recorded geology explicitly describes copper and tin lodes within the hydrothermal Cornubian orefield.
Wheal Vor Cornwall From the 15th century–1911 Tin, Copper (well documented example) The mine's own recorded geology explicitly describes exceptionally rich tin- and copper-bearing lodes associated with Cornwall's granite, part of the Cornubian orefield.
White Grit Mine Shropshire 1678–c. 1870 Lead (well documented example) The mine's own recorded geology explicitly describes hydrothermal lead veins within the Shelve orefield.
Woodhead Mine Dumfries and Galloway 1838–1873 Lead, Silver (well documented example) The mine's own recorded geology explicitly describes a hydrothermal lead vein of the Southern Uplands orefield.
Yewthwaite Mine Cumbria 1849–1893 Lead, Zinc (well documented example) Argentiferous galena, cerussite and blende in a quartz matrix, in a vein thought to be part of the same large structure as the Thornthwaite and Barrow lodes.

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