Mines with Evaporite Deposits

13 linked mines · Geology: Evaporite 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.

Mine	Region	Worked	Commodities	Connection
Billingham Anhydrite Mine	Stockton-on-Tees	1927 (sinking from 1926)–1971 (shaft capped 1978)	Anhydrite	(well documented example) A Permian Zechstein anhydrite bed — calcium sulphate without its water — worked not as a mineral to sell but as a feedstock to be roasted into sulphuric acid.
Boulby Mine	North Yorkshire	1970s–Still active	Potash, Salt, Polyhalite	(well documented example) The mine's own recorded geology explicitly describes working evaporite seams — potash, rock salt and polyhalite — left by the Zechstein Sea.
Brightling and Mountfield Gypsum Mines	East Sussex	from 1876 (Mountfield); 1963 (Brightling)	Gypsum, Anhydrite	(well documented example) The Purbeck sulphate seams are textbook evaporites — sabkha salt flats formed by evaporation in a hypersaline coastal setting, and still worked as such.
Chellaston Alabaster Mines	Derbyshire	early 14th century–1978	Gypsum	(well documented example) The mine's own recorded geology explicitly describes the Tutbury Gypsum bed as an evaporite deposit where ancient seawater dried out.
Cocklakes Mine	Cumbria	Quarry opened in the early 1860s–Still returning 57 men underground in 1930	Gypsum, Anhydrite	(well documented example) Gypsum and anhydrite in the Permo-Triassic evaporites of the Eden valley, quarried while shallow and mined as the seams deepened — the depth-controlled relationship between the two minerals this record's geology sets out.
Droitwich Salt Wells	Worcestershire	Salt production from around 600 BC–1922	Salt	(well documented example) Triassic evaporite brine, part of the same broad salt-basin sequence worked as rock salt elsewhere in the Cheshire and Worcestershire basins, but here rising to the surface under its own artesian pressure rather than needing to be mined.
Fauld	Staffordshire	gypsum worked from the 19th century; RAF ammunition depot from 1937–Still active	Gypsum	(well documented example) The record describes bedded gypsum and its fine form alabaster worked from the Needwood escarpment — an evaporite deposit, the type this record describes.
Kilroot Salt Mine	County Antrim	1965–Still active	Salt	(well documented example) Kilroot works a Triassic rock-salt bed laid down as an evaporite sequence beneath what is now Belfast Lough.
Kirkby Thore Gypsum Mines	Cumbria	from Alabaster worked from around 1790; gypsum mining from 1890	Gypsum	(well documented example) Permian evaporite beds of the Eden Valley, gypsum here rather than the anhydrite of the same broad sequence worked at Billingham — hydrated instead of dehydrated calcium sulphate.
Long Meg Mine	Cumbria	1880, working from 1885–January 1976	Gypsum, Anhydrite	(well documented example) Gypsum and anhydrite in the Permo-Triassic beds of the Eden valley — a textbook evaporite sequence, and the reason the mine could change from one mineral to the other without changing ground, as this record's geology explains.
Stoke Prior Salt Works	Worcestershire	c. 1828–1972	Salt	(well documented example) A bedded halite evaporite in the Mercia Mudstone, worked not by cutting it but by dissolving it — the wild brine runs are the deposit destroying itself, and the subsidence is the bill.
Winsford Rock Salt Mine	Cheshire	1844–Still active	Salt	(historical documentary reference) The mine works a halite deposit of the same broad evaporite family, though only the rock-salt member rather than the full potash-bearing sequence.
Yate Celestine Mines	South Gloucestershire	1880s–1994	Celestine	(well documented example) Celestine in the Triassic rocks around Yate — a sulphate concentrated by the same broad evaporitic processes that make gypsum and halite, and here concentrated better than anywhere else on earth.

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