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Lletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UKi
Regional Level Types
Lletty Evanhen Mine (Vaughan Mine)Mine (Abandoned)
Bontgoch- not defined -
Trefeirig- not defined -
CeredigionCounty
WalesCountry
UKCountry

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Latitude & Longitude (WGS84):
52° 26' 45'' North , 3° 55' 22'' West
Latitude & Longitude (decimal):
52.44601,-3.92286
GRN:
N35W02
UK National Grid Reference:
SN694849
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Capel Bangor256(2017)5.8km
Bow Street1,572(2017)7.1km
Borth1,269(2017)9.9km
Penparcau3,088(2011)11.3km
Aberystwyth18,749(2017)11.4km
Mindat Locality ID:
5273
Long-form identifier:
mindat:1:2:5273:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Dyfed; Cardiganshire


The mine developed a ore shoot in the Camdwr fault system. The vein is recorded as being up to 36 mts wide in the Taylors adit. Lletty Evenhen mine's first recorded working was by Matthew Frances in the 1840s and continued to be worked on and off until about 1857. Production figures are not known for this period. Under the name Vaughan, it was developed by John Taylor & Sons (the great 19th centry mining company). In this working a long adit was driven from near the Llechwedd Helyg mine site and after 9 years it was holed through to 67 fathoms below surface, but the ore bodies were found to have pinched out. Taylor worked the mine from 1868 to 1881 producing 581 tons of lead ore and 282 tons of zinc ore. There is a record of a few tons of manganese ore being found whilst driving the Taylor adit. Some work was done in 1910-11 with a small output.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAnglesite
Formula:PbSO4
Description: Colourless xls to 0.6mm, associated with cerussite, brochantite, linarite.
ⓘAurichalcite
Formula:(Zn,Cu)5(CO3)2(OH)6
Description: Pale green lath-like xl druses to 1cm, associated with hemimorphite, and malachite.
ⓘAzurite
Formula:Cu3(CO3)2(OH)2
Description: Xl masses to 2mm, in small quartz cavitys.
ⓘ'Bindheimite'
Formula:Pb2Sb2O6O
Description: Pale creamy resinous replacements of tetrahedrite, to several cms.
ⓘBrochantite
Formula:Cu4(SO4)(OH)6
Description: Emerald green xls to 0.5mm, and small crusts to a few mm's. Associated with langite, anglesite, linarite.
ⓘCerussite
Formula:PbCO3
Habit: various
Colour: Colourless-creamy
Description: Colourless to white, and creamy xls to 3mm.
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
Description: Small xls to 4mm in quartz cavitys,
ⓘChrysocolla
Formula:Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
Description: Pale blue to green thin crusts to afew mm, and replacements of malachite, cuprite.
ⓘConnellite
Formula:Cu19(SO4)(OH)32Cl4 · 3H2O
Habit: Balls
Colour: Deep Blue
Description: Deep blue radial balls to 0.5mm, & masses to 4mm, associated with langite.
ⓘCuprite
Formula:Cu2O
Description: Xls to 0.3mm and on slicken-slide, associated with chrysocolla.
ⓘGalena
Formula:PbS
Habit: Massive
ⓘGoethite
Formula:Fe3+O(OH)
References:
Steve Rust collectionIdentified by Steve Rust: Visual Identification
ⓘHemimorphite
Formula:Zn4Si2O7(OH)2 · H2O
Habit: Drusey crusts
Colour: White-tinted blue
Description: Colourless to tinted blue xls to 2mm; botryoidal crusts to several cms. Associated with aurichalcite, chrysocolla, malachite.
ⓘLangite
Formula:Cu4(SO4)(OH)6 · 2H2O
Description: Deep to light blue green xls to 0.5mm, associated with most other supergene species.
ⓘLinarite
Formula:PbCu(SO4)(OH)2
Description: Deep blue xls to 1mm, associated with brochantite, langite, anglesite.
ⓘMalachite
Formula:Cu2(CO3)(OH)2
Description: Green rounded masses to 1cm.
ⓘMimetite
Formula:Pb5(AsO4)3Cl
Description: Tiny colourless prismatic xls.
ⓘPosnjakite
Formula:Cu4(SO4)(OH)6 · H2O
ⓘPyrite
Formula:FeS2
ⓘPyromorphite
Formula:Pb5(PO4)3Cl
ⓘQuartz
Formula:SiO2
Description: Major vein mineral.
✪Redgillite
Formula:Cu6(SO4)(OH)10 · H2O
Habit: Drusey lath-like
Colour: Light green, green
ⓘSphalerite
Formula:ZnS
ⓘSusannite
Formula:Pb4(CO3)2(SO4)(OH)2
Description: Colourless to white zoned psuedohexagonal xls to 0.5mm, associated with cerussite.
ⓘ'Tetrahedrite Subgroup'
Formula:Cu6(Cu4C2+2)Sb4S12S
Description: Masses to several cms

Gallery:

(Zn,Cu)5(CO3)2(OH)6ⓘAurichalcite
Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1ⓘChrysocolla
Cu19(SO4)(OH)32Cl4 · 3H2OⓘConnellite
Cu2OⓘCuprite
Zn4Si2O7(OH)2 · H2OⓘHemimorphite
Cu4(SO4)(OH)6 · 2H2OⓘLangite
PbCu(SO4)(OH)2ⓘLinarite
Cu2(CO3)(OH)2ⓘMalachite
Pb5(PO4)3ClⓘPyromorphite
Cu6(SO4)(OH)10 · H2OⓘRedgillite

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
ⓘConnellite3.DA.25Cu19(SO4)(OH)32Cl4 · 3H2O
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘCuprite4.AA.10Cu2O
ⓘQuartz4.DA.05SiO2
ⓘ'Bindheimite'4.DH.20Pb2Sb2O6O
Group 5 - Nitrates and Carbonates
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘAurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
ⓘSusannite5.BF.40Pb4(CO3)2(SO4)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnglesite7.AD.35PbSO4
ⓘBrochantite7.BB.25Cu4(SO4)(OH)6
ⓘLinarite7.BC.65PbCu(SO4)(OH)2
ⓘLangite7.DD.10Cu4(SO4)(OH)6 · 2H2O
ⓘPosnjakite7.DD.10Cu4(SO4)(OH)6 · H2O
ⓘRedgillite7.DD.70Cu6(SO4)(OH)10 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMimetite8.BN.05Pb5(AsO4)3Cl
ⓘPyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
ⓘHemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

List of minerals for each chemical element

HHydrogen
HⓘAurichalcite(Zn,Cu)5(CO3)2(OH)6
HⓘAzuriteCu3(CO3)2(OH)2
HⓘBrochantiteCu4(SO4)(OH)6
HⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
HⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
HⓘGoethiteFe3+O(OH)
HⓘHemimorphiteZn4Si2O7(OH)2 · H2O
HⓘLangiteCu4(SO4)(OH)6 · 2H2O
HⓘLinaritePbCu(SO4)(OH)2
HⓘMalachiteCu2(CO3)(OH)2
HⓘPosnjakiteCu4(SO4)(OH)6 · H2O
HⓘSusannitePb4(CO3)2(SO4)(OH)2
HⓘRedgilliteCu6(SO4)(OH)10 · H2O
CCarbon
CⓘAurichalcite(Zn,Cu)5(CO3)2(OH)6
CⓘAzuriteCu3(CO3)2(OH)2
CⓘCerussitePbCO3
CⓘMalachiteCu2(CO3)(OH)2
CⓘSusannitePb4(CO3)2(SO4)(OH)2
OOxygen
OⓘAnglesitePbSO4
OⓘAurichalcite(Zn,Cu)5(CO3)2(OH)6
OⓘAzuriteCu3(CO3)2(OH)2
OⓘBindheimitePb2Sb2O6O
OⓘBrochantiteCu4(SO4)(OH)6
OⓘCerussitePbCO3
OⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
OⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
OⓘCupriteCu2O
OⓘGoethiteFe3+O(OH)
OⓘHemimorphiteZn4Si2O7(OH)2 · H2O
OⓘLangiteCu4(SO4)(OH)6 · 2H2O
OⓘLinaritePbCu(SO4)(OH)2
OⓘMalachiteCu2(CO3)(OH)2
OⓘMimetitePb5(AsO4)3Cl
OⓘPosnjakiteCu4(SO4)(OH)6 · H2O
OⓘPyromorphitePb5(PO4)3Cl
OⓘQuartzSiO2
OⓘSusannitePb4(CO3)2(SO4)(OH)2
OⓘRedgilliteCu6(SO4)(OH)10 · H2O
AlAluminium
AlⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
SiSilicon
SiⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
SiⓘHemimorphiteZn4Si2O7(OH)2 · H2O
SiⓘQuartzSiO2
PPhosphorus
PⓘPyromorphitePb5(PO4)3Cl
SSulfur
SⓘAnglesitePbSO4
SⓘBrochantiteCu4(SO4)(OH)6
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
SⓘGalenaPbS
SⓘLangiteCu4(SO4)(OH)6 · 2H2O
SⓘLinaritePbCu(SO4)(OH)2
SⓘPosnjakiteCu4(SO4)(OH)6 · H2O
SⓘPyriteFeS2
SⓘSphaleriteZnS
SⓘSusannitePb4(CO3)2(SO4)(OH)2
SⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
SⓘRedgilliteCu6(SO4)(OH)10 · H2O
ClChlorine
ClⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
ClⓘMimetitePb5(AsO4)3Cl
ClⓘPyromorphitePb5(PO4)3Cl
FeIron
FeⓘChalcopyriteCuFeS2
FeⓘGoethiteFe3+O(OH)
FeⓘPyriteFeS2
CuCopper
CuⓘAurichalcite(Zn,Cu)5(CO3)2(OH)6
CuⓘAzuriteCu3(CO3)2(OH)2
CuⓘBrochantiteCu4(SO4)(OH)6
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
CuⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
CuⓘCupriteCu2O
CuⓘLangiteCu4(SO4)(OH)6 · 2H2O
CuⓘLinaritePbCu(SO4)(OH)2
CuⓘMalachiteCu2(CO3)(OH)2
CuⓘPosnjakiteCu4(SO4)(OH)6 · H2O
CuⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
CuⓘRedgilliteCu6(SO4)(OH)10 · H2O
ZnZinc
ZnⓘAurichalcite(Zn,Cu)5(CO3)2(OH)6
ZnⓘHemimorphiteZn4Si2O7(OH)2 · H2O
ZnⓘSphaleriteZnS
AsArsenic
AsⓘMimetitePb5(AsO4)3Cl
SbAntimony
SbⓘBindheimitePb2Sb2O6O
SbⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
PbⓘAnglesitePbSO4
PbⓘBindheimitePb2Sb2O6O
PbⓘCerussitePbCO3
PbⓘGalenaPbS
PbⓘLinaritePbCu(SO4)(OH)2
PbⓘMimetitePb5(AsO4)3Cl
PbⓘPyromorphitePb5(PO4)3Cl
PbⓘSusannitePb4(CO3)2(SO4)(OH)2

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent

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