Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Lletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UKi
Regional Level Types
Lletty Evanhen Mine (Vaughan Mine)Mine (Abandoned)
BontgochVillage
TrefeirigCommunity
CeredigionCounty
WalesCountry
UKCountry

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Latitude & Longitude (WGS84):
52° 26' 45'' North , 3° 55' 22'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN694849
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
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

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


28 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Anglesite
Formula: PbSO4
Description: Colourless xls to 0.6mm, associated with cerussite, brochantite, linarite.
References:
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: Pale green lath-like xl druses to 1cm, associated with hemimorphite, and malachite.
References:
Azurite
Formula: Cu3(CO3)2(OH)2
Description: Xl masses to 2mm, in small quartz cavitys.
References:
'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.
References:
Cerussite
Formula: PbCO3
Habit: various
Colour: Colourless-creamy
Description: Colourless to white, and creamy xls to 3mm.
Cesàrolite
Formula: PbMn4+3O6(OH)2
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.
References:
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.
References:
Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Cuprite
Formula: Cu2O
Description: Xls to 0.3mm and on slicken-slide, associated with chrysocolla.
References:
Galena
Formula: PbS
Habit: Massive
Goethite
Formula: Fe3+O(OH)
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.
References:
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Description: Deep to light blue green xls to 0.5mm, associated with most other supergene species.
References:
Linarite
Formula: PbCu(SO4)(OH)2
Description: Deep blue xls to 1mm, associated with brochantite, langite, anglesite.
References:
Lithiophorite
Formula: (Al,Li)MnO2(OH)2
Malachite
Formula: Cu2(CO3)(OH)2
Description: Green rounded masses to 1cm.
References:
'Manganese Oxides'
Mimetite
Formula: Pb5(AsO4)3Cl
Description: Tiny colourless prismatic xls.
References:
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
References:
Sphalerite
Formula: ZnS
Susannite
Formula: Pb4(CO3)2(SO4)(OH)2
Description: Colourless to white zoned psuedohexagonal xls to 0.5mm, associated with cerussite.
References:
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Description: Masses to several cms
References:

Gallery:

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
Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Lithiophorite4.FE.25(Al,Li)MnO2(OH)2
Cesàrolite4.FG.10PbMn4+3O6(OH)2
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
Unclassified
'Manganese Oxides'-

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 CesàrolitePbMn34+O6(OH)2
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 Lithiophorite(Al,Li)MnO2(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
LiLithium
Li Lithiophorite(Al,Li)MnO2(OH)2
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 CesàrolitePbMn34+O6(OH)2
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
O CoronaditePb(Mn64+Mn23+)O16
O CryptomelaneK(Mn74+Mn3+)O16
O CupriteCu2O
O GoethiteFe3+O(OH)
O HemimorphiteZn4Si2O7(OH)2 · H2O
O LangiteCu4(SO4)(OH)6 · 2H2O
O LinaritePbCu(SO4)(OH)2
O Lithiophorite(Al,Li)MnO2(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
Al Lithiophorite(Al,Li)MnO2(OH)2
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
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
MnManganese
Mn CesàrolitePbMn34+O6(OH)2
Mn CoronaditePb(Mn64+Mn23+)O16
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn Lithiophorite(Al,Li)MnO2(OH)2
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 CesàrolitePbMn34+O6(OH)2
Pb CoronaditePb(Mn64+Mn23+)O16
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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