Bwlch Glas Mine, Talybont, Ceulanymaesmawr, Ceredigion, Wales, UKi
| Regional Level Types | |
|---|---|
| Bwlch Glas Mine | Mine (Abandoned) |
| Talybont | - not defined - |
| Ceulanymaesmawr | - not defined - |
| Ceredigion | County |
| Wales | Country |
| UK | Country |
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Key
Latitude & Longitude (WGS84):
52° 28' 20'' North , 3° 54' 3'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN709878
Locality type:
Mine (Abandoned) - last checked 2019
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Capel Bangor | 256 (2017) | 9.0km |
| Bow Street | 1,572 (2017) | 9.2km |
| Borth | 1,269 (2017) | 10.3km |
| Aberdyfi | 725 (2017) | 12.6km |
| Machynlleth | 2,235 (2017) | 13.6km |
Other/historical names associated with this locality:
Dyfed; Cardiganshire
The mine is probably best known for its occurrence of pyromorphite, from a vertical pipe in the roof of the adit (pyromorphite is also found in other areas in this adit level). The mine was developed on two veins possibly associated with the Hafan fault. Recorded working at the mine is very late in relationship to other mines in mid-Wales. And was being worked on a number of occasions from 1882 to 1916, producing 1240 tons of lead ore and 99 tons of zinc ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Dana Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
19 valid minerals.
Detailed Mineral List:
| ⓘ Anglesite Formula: PbSO4 Habit: Bladed, and blocky Colour: Colourless Description: Colourless xls to 1mm with cerussite, susannite, caledonite, and malachite Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ 'Bindheimite' Formula: Pb2Sb2O6O Habit: Massive, powdery Colour: Shades of yellow Reference: No reference listed |
| ⓘ Caledonite Formula: Pb5Cu2(SO4)3(CO3)(OH)6 Habit: Prismatic Colour: Blue Description: Light blue xls to 0.5mm with cerussite, susannite. Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Cerussite Formula: PbCO3 Habit: Various Colour: Colourless, white, creamy Description: Colourless to creamy xls to 1cm+. Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ Chalcopyrite Formula: CuFeS2 Habit: Massive Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Chenite ? Formula: Pb4Cu(SO4)2(OH)6 Description: Unconfirmed from this mine. The crystal form, colour and association would be correct for this species Reference: S Rust |
| ⓘ Cinnabar Formula: HgS Habit: Powdery Colour: Red, orange red Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ Galena Formula: PbS Habit: Massive Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Greenockite Formula: CdS Habit: Very thin crusts Colour: Yellow, bright yellow Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O Habit: Bladed crystals Colour: Colourless Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ Hydrozincite Formula: Zn5(CO3)2(OH)6 Reference: national museum of wales database |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Habit: Botryoidal Colour: Pale green, green Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Mattheddleite Formula: Pb5(SiO4)1.5(SO4)1.5(Cl,OH) Reference: S.Rust collection |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl Habit: Prismatic, drusey. Colour: Shades of green, yellow to pale orange Description: Mostly grass green xls to 5mm, forming drusy crusts to several cms. Has been found as yellow to yellow-orange micro-crystals. Associated with cerussite, and wulfenite. Reference: Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153 |
| ⓘ Quartz Formula: SiO2 Habit: Massive, typical crystal habits Colour: White-colourless Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Sphalerite Formula: ZnS Habit: Massive Colour: Brown Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Steverustite Formula: Pb2+5(OH)5[Cu+(S6+O3S2-)3](H2O)2 Reference: Cooper, M.A., Hawthorne, F.C., Moffatt, E. (2009): Steverustite, Pb2+5(OH)5(Cu1+(S6+O3S2-)3)H2O)2, a new thiosulphate mineral from the Frongoch Mine Dump, Devils Bridge, Ceredigion, Wales: Description and crystal structure. Mineralogical Magazine, 73, 235-250; S. Rust Collection |
| ⓘ Susannite Formula: Pb4(CO3)2(SO4)(OH)2 Habit: Platy pseudohexagonal Colour: Colourless-creamy Description: Colourless pseudohexagonal xls to 0.5mm, with cerussite, anglesite, and caledonite. Reference: [UKJMM 17 (1996) p.18] |
| ⓘ Ullmannite Formula: NiSbS |
| ⓘ Wulfenite Formula: Pb(MoO4) Habit: Bipyramiddle, tabular, blocky Colour: Orange, yellow-orange Description: Orange to yellow-orange bipyramiddle and tabular xls to 1mm. With pyromorphite, and cerussite Reference: [MinRec 13:151-153, 21:492] |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Greenockite | 2.CB.45 | CdS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Ullmannite | 2.EB.25 | NiSbS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | 'Bindheimite' | 4.DH.20 | Pb2Sb2O6O |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Hydrozincite | 5.BA.15 | Zn5(CO3)2(OH)6 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Susannite | 5.BF.40 | Pb4(CO3)2(SO4)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Caledonite | 7.BC.50 | Pb5Cu2(SO4)3(CO3)(OH)6 |
| ⓘ | Chenite ? | 7.BC.70 | Pb4Cu(SO4)2(OH)6 |
| ⓘ | Steverustite | 7.JA.10 | Pb2+5(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | Mattheddleite | 9.AH.25 | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
List of minerals arranged by Dana 8th Edition classification
| Group 2 - SULFIDES | |||
|---|---|---|---|
| AmXp, with m:p = 1:1 | |||
| ⓘ | Cinnabar | 2.8.14.1 | HgS |
| ⓘ | Galena | 2.8.1.1 | PbS |
| ⓘ | Greenockite | 2.8.7.2 | CdS |
| ⓘ | Sphalerite | 2.8.2.1 | ZnS |
| AmBnXp, with (m+n):p = 1:1 | |||
| ⓘ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Ullmannite | 2.12.3.3 | NiSbS |
| Group 14 - ANHYDROUS NORMAL CARBONATES | |||
| A(XO3) | |||
| ⓘ | Cerussite | 14.1.3.4 | PbCO3 |
| Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN | |||
| ⓘ | Malachite | 16a.3.1.1 | Cu2(CO3)(OH)2 |
| ⓘ | Hydrozincite | 16a.4.1.1 | Zn5(CO3)2(OH)6 |
| Group 17 - COMPOUND CARBONATES | |||
| Miscellaneous | |||
| ⓘ | Susannite | 17.1.3.1 | Pb4(CO3)2(SO4)(OH)2 |
| Group 28 - ANHYDROUS ACID AND NORMAL SULFATES | |||
| AXO4 | |||
| ⓘ | Anglesite | 28.3.1.3 | PbSO4 |
| Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN | |||
| (AB)m(XO4)pZq, where m:p>2:1 | |||
| ⓘ | Chenite ? | 30.1.16.1 | Pb4Cu(SO4)2(OH)6 |
| Miscellaneous | |||
| ⓘ | Steverustite | 30.4.4. | Pb2+5(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| Group 32 - COMPOUND SULFATES | |||
| Anhydrous Compound Sulfates containing Hydroxyl or Halogen | |||
| ⓘ | Caledonite | 32.3.2.1 | Pb5Cu2(SO4)3(CO3)(OH)6 |
| Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN | |||
| A5(XO4)3Zq | |||
| ⓘ | Pyromorphite | 41.8.4.1 | Pb5(PO4)3Cl |
| Group 44 - ANTIMONATES | |||
| A2X2O6(O,OH,F) | |||
| ⓘ | 'Bindheimite' | 44.1.1.2 | Pb2Sb2O6O |
| Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES | |||
| AXO4 | |||
| ⓘ | Wulfenite | 48.1.3.1 | Pb(MoO4) |
| Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O | |||
| Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination | |||
| ⓘ | Mattheddleite | 52.4.9.6 | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O | |||
| Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination | |||
| ⓘ | Hemimorphite | 56.1.2.1 | Zn4Si2O7(OH)2 · H2O |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Susannite | Pb4(CO3)2(SO4)(OH)2 |
| H | ⓘ Steverustite | Pb52+(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| H | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| H | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Chenite | Pb4Cu(SO4)2(OH)6 |
| C | Carbon | |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Susannite | Pb4(CO3)2(SO4)(OH)2 |
| C | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| C | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Wulfenite | Pb(MoO4) |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Susannite | Pb4(CO3)2(SO4)(OH)2 |
| O | ⓘ Steverustite | Pb52+(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| O | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| O | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | ⓘ Bindheimite | Pb2Sb2O6O |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Chenite | Pb4Cu(SO4)2(OH)6 |
| Si | Silicon | |
| Si | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Susannite | Pb4(CO3)2(SO4)(OH)2 |
| S | ⓘ Steverustite | Pb52+(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| S | ⓘ Ullmannite | NiSbS |
| S | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Greenockite | CdS |
| S | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Galena | PbS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chenite | Pb4Cu(SO4)2(OH)6 |
| Cl | Chlorine | |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Cl | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Ni | Nickel | |
| Ni | ⓘ Ullmannite | NiSbS |
| Cu | Copper | |
| Cu | ⓘ Steverustite | Pb52+(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| Cu | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chenite | Pb4Cu(SO4)2(OH)6 |
| Zn | Zinc | |
| Zn | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | ⓘ Sphalerite | ZnS |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Cd | Cadmium | |
| Cd | ⓘ Greenockite | CdS |
| Sb | Antimony | |
| Sb | ⓘ Ullmannite | NiSbS |
| Sb | ⓘ Bindheimite | Pb2Sb2O6O |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
| Pb | Lead | |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Susannite | Pb4(CO3)2(SO4)(OH)2 |
| Pb | ⓘ Steverustite | Pb52+(OH)5[Cu+(S6+O3S2-)3](H2O)2 |
| Pb | ⓘ Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
| Pb | ⓘ Bindheimite | Pb2Sb2O6O |
| Pb | ⓘ Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Chenite | Pb4Cu(SO4)2(OH)6 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Braithwaite, R.S.W. (1982): Pyromorphite, wulfenite and other minerals from the Bwlch-Glas mine central Wales. Mineralogical Record 13: 151-153
Other Regions, Features and Areas containing this locality
British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- Wales
- Cambrian MountainsMountain Range
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Bwlch Glas Mine, Talybont, Ceulanymaesmawr, Ceredigion, Wales, UK