Fluorspar

Symbol	CaF₂

This is a short overview. For the background — history, value over time and notable mines — see Fluorspar →

Occurs in: Hydrothermal Deposits →

The mineral fluorite, worked by crushing and gravity or froth-flotation dressing, often as a by-product of lead mining since it commonly occurs alongside galena. Used as a flux in steelmaking and, where of high enough purity, in the chemical and optical industries.

Mines

Show these mines on the map

Mine	Region	Worked
Allenheads Mines	Northumberland	1684–1896
Beldon Lead Mine	County Durham	18th century–By 1820
Blackdene Mine	County Durham	By the early 15th century–1987
Blanchland Fluor Mines	Northumberland	from 1938
Blue John Cavern	Derbyshire	from At least 1766
Bonsall Leys Mines	Derbyshire	1540s–19th century
Burtree Pasture Mine	County Durham	By 1800–c. 1980
Cambokeels Mine	County Durham	1868–1989
Carshield Mine	Northumberland	1770s–1913
Coalcleugh	Northumberland	17th century–1878
Cornish Hush Mine	County Durham	By 1863–1980
Derwent Lead Mines	County Durham	By 1624–1980s
Diana Maria Mine	County Durham	2017 (opencast)–Still active
Dirtlow Rake Mine	Derbyshire	at least 17th century–20th century
Frank Mills Mine	Devon	1847–1880
Frazer's Hush Mine	County Durham	early 1970s–1999
Frosterley Marble Quarries	County Durham	worked from at least 1183–By the 20th century
Glebe Mine	Derbyshire	From 1860s–1884
Golconda Mine	Derbyshire	From the 18th century–1953 (reported)
Good Luck Mine	Derbyshire	25 October 1830–1952
Grassington Moor Mines	North Yorkshire	16th century–1880
Greenhow Mines	North Yorkshire	Roman–c. 1900
Groverake Mine	County Durham	From 1819–1999
Harehope Gill Mine	County Durham	1796–1890
Heights Pasture Mine	County Durham	from 1850 (Weardale Iron Company)
High Sedling Mine	County Durham	Working by 1930–By 1930
Hilton and Scordale Mines	Cumbria	By the 18th century–After 1919
Hopping Pipe Mine	Derbyshire	By 1901–c. 1960
Hurst Mines	North Yorkshire	By late 16th century–1890 (brief 1938 rework at Prys Mine)
Lady Annabella Mine	County Durham	Early 1960s (as a cement quarry)–Still active
Ladywash Mine	Derbyshire	1714–1979
Long Rake Spar Mine	Derbyshire	1867–1981 (underground)
Longstone Edge	Derbyshire	worked from at least the 18th century (lead veins)–2009
Longtor Mines	Derbyshire	from Post-medieval
Masson Hill Mine	Derbyshire	Medieval (documented 1470)–20th century
Milldam Mine	Derbyshire	1885–October 2023
Odin Mine	Derbyshire	1280 (documented)–1869
Putwell Hill Mine	Derbyshire	Documented from the late 16th century–1931
Red Rake Mine	Derbyshire	27 October 1851–Early 20th century
Redburn Mine	County Durham	1930s–1981
Rodderup Fell Mine	Cumbria	From about 1800–1948
Rogerley Mine	County Durham	from early 1970s
Rookhope (Boltsburn Mine)	County Durham	early 19th century–1931
Sallet Hole Mine	Derbyshire	at least 17th century (as a sough)–1998
Sedling Rake Mine	County Durham	1818–1948
Sipton Mine	Northumberland	1850s (discovery)–1985
Snailbeach Mine	Shropshire	1781–1955
St Peter's Mine	Northumberland	1902–1946
Stanhopeburn Mine	County Durham	1830–1982
Stotsfield Burn Mine	County Durham	From 1863–1966
Treak Cliff Cavern	Derbyshire	c.1745-50–1926
Treskerby Mine	Cornwall	By 1800–1922-27
Wapping Mine	Derbyshire	Working by the 1750s (lead)–After 1956
Wheal Grambler	Cornwall	By 1792–1893
Wheal Mary Ann	Cornwall	1845–c. 1875
Wolfcleugh Mine	County Durham	From 1818–1912