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Mynydd Gorddu Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UKi
Regional Level Types
Mynydd Gorddu MineMine (Abandoned)
Bontgoch (Elerch)- not defined -
Ceulanymaesmawr- not defined -
CeredigionCounty
WalesCountry
UKCountry

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Latitude & Longitude (WGS84):
52° 27' 22'' North , 3° 57' 37'' West
Latitude & Longitude (decimal):
52.45621,-3.96054
GeoHash:
G#: gcm4mvk58
GRN:
N35W02
UK National Grid Reference:
SN668861
Type:
Mine (Abandoned) - last checked 2020
KΓΆppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Bow Street1,572 (2017)4.8km
Capel Bangor256 (2017)5.9km
Borth1,269 (2017)7.1km
Aberystwyth18,749 (2017)9.4km
Penparcau3,088 (2011)9.7km
Mindat Locality ID:
4915
Long-form identifier:
mindat:1:2:4915:6
GUID (UUID V4):
2dc2d072-9990-4d51-b94b-ab25ef875b91
Other/historical names associated with this locality:
Dyfed; Cardiganshire


A small mine located 1.5 kms WSW of Bontgoch, worked a section of the Hafan vein to depth of 46 fathoms below the adit. Trial tenching had been carried out in 1848. In 1870 a rich shoot of galena was found at surface. The mine contiued untill 1884 recorded output is 901 tons of lead ore and 183 tons of zinc ore. The was a short abortive trial in 1881-82.

The site straddles the track that services the wind farm. In the valley bottom are extensive sand dumps around modern farm buildings. Further up the hillside are several building ruins and rock dumps, whilst at the top of the site beside the track is a shaft collar and very small dump that has been recently dug over and contaminated with material brought in for surfacing the track. Jan, 2020.

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


14 valid minerals.

Detailed Mineral List:

β“˜ 'Bindheimite'
Formula: Pb2Sb2O6O
Habit: Massive, powdery
Colour: Shades of yellow
Description: Yellowish crusts to a few cms
β“˜ Bottinoite
Formula: Ni2+Sb5+2(OH)12 · 6H2O
Habit: Thin crusts
Colour: Pale blue green
Fluorescence: None
Description: Thin platy pale blue-green crust on ullmannite to 2mm, with bindheimite (XRD)
β“˜ Cerussite
Formula: PbCO3
Habit: Various
Colour: Colourless-white
Description: Xls to 5mm+.
β“˜ Chalcopyrite
Formula: CuFeS2
Habit: Massive
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Habit: Botryoidal, massive
Colour: Blue-green
β“˜ Galena
Formula: PbS
Habit: Massive
β“˜ Greenockite
Formula: CdS
Habit: Very thin crusts
Colour: Bright yellow
Description: Thin smears on sphalerite, occasionally with hemimorphite
β“˜ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Habit: Divergent bladed
Colour: Colourless, brownish
Description: Xl sprays to 3mm, from pale brown to colourless
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
Habit: Radial fibrous
Colour: Green
β“˜ Pyromorphite
Formula: Pb5(PO4)3Cl
Habit: Typical crystal habits
Colour: Greenish yelow
β“˜ Quartz
Formula: SiO2
Habit: Massive, and typical crystals
Colour: White-colourless
β“˜ Sphalerite
Formula: ZnS
Habit: Massive
Colour: Shades of brown
β“˜ Susannite
Formula: Pb4(CO3)2(SO4)(OH)2
References:
S. Rust collection.Identified by Steve Rust: Visual Identification
β“˜ Ullmannite
Formula: NiSbS
Habit: Cubic
Colour: Metallic grey
Description: Cubic xls to 2mm embeded in quartz.
β“˜ Wulfenite
Formula: Pb(MoO4)
Habit: Tabular
Colour: Brownish orange
Description: Orange tabular crystals to 1mm

Gallery:

Pb5(PO4)3Clβ“˜ Pyromorphite
NiSbSβ“˜ Ullmannite
Pb(MoO4)β“˜ Wulfenite

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Greenockite2.CB.45CdS
β“˜Galena2.CD.10PbS
β“˜Ullmannite2.EB.25NiSbS
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
β“˜'Bindheimite'4.DH.20Pb2Sb2O6O
β“˜Bottinoite4.FH.05Ni2+Sb5+2(OH)12 Β· 6H2O
Group 5 - Nitrates and Carbonates
β“˜Cerussite5.AB.15PbCO3
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Susannite5.BF.40Pb4(CO3)2(SO4)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
β“˜Hemimorphite9.BD.10Zn4Si2O7(OH)2 Β· H2O
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1

List of minerals for each chemical element

HHydrogen
Hβ“˜ BottinoiteNi2+Sb25+(OH)12 · 6H2O
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ SusannitePb4(CO3)2(SO4)(OH)2
CCarbon
Cβ“˜ CerussitePbCO3
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SusannitePb4(CO3)2(SO4)(OH)2
OOxygen
Oβ“˜ BindheimitePb2Sb2O6O
Oβ“˜ BottinoiteNi2+Sb25+(OH)12 · 6H2O
Oβ“˜ CerussitePbCO3
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ PyromorphitePb5(PO4)3Cl
Oβ“˜ QuartzSiO2
Oβ“˜ SusannitePb4(CO3)2(SO4)(OH)2
Oβ“˜ WulfenitePb(MoO4)
AlAluminium
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Siβ“˜ QuartzSiO2
PPhosphorus
Pβ“˜ PyromorphitePb5(PO4)3Cl
SSulfur
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ GalenaPbS
Sβ“˜ GreenockiteCdS
Sβ“˜ SphaleriteZnS
Sβ“˜ SusannitePb4(CO3)2(SO4)(OH)2
Sβ“˜ UllmanniteNiSbS
ClChlorine
Clβ“˜ PyromorphitePb5(PO4)3Cl
FeIron
Feβ“˜ ChalcopyriteCuFeS2
NiNickel
Niβ“˜ BottinoiteNi2+Sb25+(OH)12 · 6H2O
Niβ“˜ UllmanniteNiSbS
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ MalachiteCu2(CO3)(OH)2
ZnZinc
Znβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Znβ“˜ SphaleriteZnS
MoMolybdenum
Moβ“˜ WulfenitePb(MoO4)
CdCadmium
Cdβ“˜ GreenockiteCdS
SbAntimony
Sbβ“˜ BindheimitePb2Sb2O6O
Sbβ“˜ BottinoiteNi2+Sb25+(OH)12 · 6H2O
Sbβ“˜ UllmanniteNiSbS
PbLead
Pbβ“˜ BindheimitePb2Sb2O6O
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS
Pbβ“˜ PyromorphitePb5(PO4)3Cl
Pbβ“˜ SusannitePb4(CO3)2(SO4)(OH)2
Pbβ“˜ WulfenitePb(MoO4)

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent

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