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Allenheads Mine (Beaumont Mine), Allendale, Northumberland, England, UKi
Regional Level Types
Allenheads Mine (Beaumont Mine)Mine
AllendaleCivil Parish
NorthumberlandCounty
EnglandConstituent Country
UKCountry
Allenheads Mine (Beaumont Mine), Weardale, Co. Durham, England, UK

This page kindly sponsored by Ru Smith
Key
Latitude & Longitude (WGS84):
54° 48' 11'' North , 2° 13' 4'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
NY860454
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Allendale Town709 (2017)10.8km
Stanhope1,602 (2017)14.2km
Alston1,105 (2018)14.2km
Slaley711 (2017)16.9km
Frosterley636 (2017)18.7km


The most productive mine in the orefield under the Beaumonts and subsequently the Weardale Lead Co., who started working the mine in the 1940's for fluorspar.
The British Steel Corporation began the re-opening of the mine in 1969-70, under the name Beaumont Mine. Unfortunately, the hoped-for reserves of fluorspar were not found and by 1983, with all the equipment still intact, pumping had ceased and the mine was at a standstill.

While the mine failed to produce the anticipated commercial product, some important specimen finds occurred during the British Steel operation. Most notable were the pale lavender, twinned fluorites associated with sphalerite and siderite found circa 1970 in the remnants of flats along the Diana Vein.

Regions containing this locality

Weardale, Co. Durham, England, UKValley
Eurasian PlateTectonic Plate
EuropeContinent
British IslesGroup of Islands
The Pennines, England, UKRange of Mountains and Hills
North Pennines Area, England, UKArea of Outstanding Natural Beauty
Northern Pennine Orefield, England, UKOre Field

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 167-171
Calcite
Formula: CaCO3
Reference: Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 167-171
Chalcopyrite
Formula: CuFeS2
Reference: Manfred Schoenfelder
Dolomite
Formula: CaMg(CO3)2
Reference: Manfred Schoenfelder
Fluorite
Formula: CaF2
Reference: Fluorite: The Collector's Choice. Extra Lapis English No. 9
Galena
Formula: PbS
Pyrite
Formula: FeS2
Reference: Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 167-171
Quartz
Formula: SiO2
Reference: Dunham, Sir K. C. Geology of the North Pennine Orefield, Volume 1 Tyne to Stainmore (2nd Edition), pp 167-171
Siderite
Formula: FeCO3
Reference: Fluorite: The Collector's Choice. Extra Lapis English No. 9
Sphalerite
Formula: ZnS
Reference: Fluorite: The Collector's Choice. Extra Lapis English No. 9

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Siderite5.AB.05FeCO3

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

CCarbon
C SideriteFeCO3
C CalciteCaCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
C DolomiteCaMg(CO3)2
OOxygen
O SideriteFeCO3
O CalciteCaCO3
O AnkeriteCa(Fe2+,Mg)(CO3)2
O QuartzSiO2
O DolomiteCaMg(CO3)2
FFluorine
F FluoriteCaF2
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S GalenaPbS
S SphaleriteZnS
S PyriteFeS2
S ChalcopyriteCuFeS2
CaCalcium
Ca FluoriteCaF2
Ca CalciteCaCO3
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca DolomiteCaMg(CO3)2
FeIron
Fe SideriteFeCO3
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Dunham, K. C., 1990, Geology of the North Pennines Orefield, v. 1, 2nd ed., British Geological Survey, 299 p.


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