Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat Articles
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Henfwlch Mine, Nant-y-Moch Reservoir area, Talybont, Ceulanymaesmawr, Ceredigion, Wales, UKi
Regional Level Types
Henfwlch MineMine
Nant-y-Moch Reservoir areaArea
Talybont- not defined -
Ceulanymaesmawr- not defined -
CeredigionCounty
WalesCountry
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84):
52° 28' 39'' North , 3° 51' 35'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN737883
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Capel Bangor256 (2017)11.2km
Bow Street1,572 (2017)12.0km
Machynlleth2,235 (2017)12.6km
Borth1,269 (2017)13.0km
Aberdyfi725 (2017)14.6km
Other/historical names associated with this locality:
Dyfed; Cardiganshire


Henfwlch was mostly worked in conjunction with Hafan mine. Henfwlch possibly started work before 1750. Recorded development dates from 1850 and was worked on a number of occasions to 1890.
Recorded output is 623 tons of lead ore, 25 tons of copper ore, well short of the probable output.

Given the output claimed above the dumps are remarkably barren.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
British IslesGroup of Islands

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Aragonite
Formula: CaCO3
Description: Colourless prismatic xls to 7mm with dolomite.
Reference: BMS Database
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Description: Lath xl crusts to 2.5cms
Reference: BMS Database
'Bindheimite'
Formula: Pb2Sb2O6O
Brochantite
Formula: Cu4(SO4)(OH)6
Description: Thin druse crusts to afew mm, rarely associated with serpierite.
Reference: S Rust Collection
Calcite
Formula: CaCO3
Description: Platy xls to 3mm+, on quartz and dolomite.
Reference: S Rust Collection
Cerussite
Formula: PbCO3
Description: Xls to 8mm on quartz.
Reference: BMS Database
Chalcopyrite
Formula: CuFeS2
Reference: No reference listed
Dolomite
Formula: CaMg(CO3)2
Reference: No reference listed
Galena
Formula: PbS
Reference: No reference listed
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Description: Xls to 6mm, druses to 6cms (good for Wales)on quartz.
Reference: BMS Database
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Linarite
Formula: PbCu(SO4)(OH)2
Malachite
Formula: Cu2(CO3)(OH)2
Description: Xls to 2mm on quartz.
Reference: BMS Database
Millerite
Formula: NiS
Reference: BMS Database
Pyromorphite
Formula: Pb5(PO4)3Cl
Habit: Blocky to acicular
Colour: Colourless to yellow and yellow green
Reference: BMS Database
Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Description: Pale blue lath-like xl druse to 5mm, associated with brochantite.
Reference: S Rust Collection
Sphalerite
Formula: ZnS
Reference: No reference listed
Tučekite
Formula: Ni9Sb2S8
Reference: BMS Database
'Wad'
Wulfenite
Formula: Pb(MoO4)
Habit: Platy-tabular
Colour: Orange
Reference: BMS Database

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Millerite2.CC.20NiS
Sphalerite2.CB.05aZnS
Tučekite2.BB.10Ni9Sb2S8
Group 4 - Oxides and Hydroxides
'Bindheimite'4.DH.20Pb2Sb2O6O
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Brochantite7.BB.25Cu4(SO4)(OH)6
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Linarite7.BC.65PbCu(SO4)(OH)2
Serpierite7.DD.30Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Unclassified Minerals, Rocks, etc.
'Wad'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Millerite2.8.16.1NiS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 3 - SULFOSALTS
ø = 4
Tučekite3.2.5.5Ni9Sb2S8
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
(AB)2(XO4)Zq
Linarite30.2.3.1PbCu(SO4)(OH)2
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)4(XO4)Zq·xH2O
Langite31.4.3.1Cu4(SO4)(OH)6 · 2H2O
(AB)5(XO4)2Zq·xH2O
Serpierite31.6.2.1Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Pyromorphite41.8.4.1Pb5(PO4)3Cl
Group 44 - ANTIMONATES
A2X2O6(O,OH,F)
'Bindheimite'44.1.1.2Pb2Sb2O6O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
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
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
'Wad'-

List of minerals for each chemical element

HHydrogen
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H MalachiteCu2(CO3)(OH)2
H BrochantiteCu4(SO4)(OH)6
H SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
H LinaritePbCu(SO4)(OH)2
H HydrozinciteZn5(CO3)2(OH)6
H LangiteCu4(SO4)(OH)6 · 2H2O
CCarbon
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C AragoniteCaCO3
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C HydrozinciteZn5(CO3)2(OH)6
OOxygen
O HemimorphiteZn4Si2O7(OH)2 · H2O
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O CerussitePbCO3
O MalachiteCu2(CO3)(OH)2
O PyromorphitePb5(PO4)3Cl
O AragoniteCaCO3
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
O DolomiteCaMg(CO3)2
O AnglesitePbSO4
O BindheimitePb2Sb2O6O
O LinaritePbCu(SO4)(OH)2
O HydrozinciteZn5(CO3)2(OH)6
O LangiteCu4(SO4)(OH)6 · 2H2O
O WulfenitePb(MoO4)
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
PPhosphorus
P PyromorphitePb5(PO4)3Cl
SSulfur
S MilleriteNiS
S TučekiteNi9Sb2S8
S BrochantiteCu4(SO4)(OH)6
S ChalcopyriteCuFeS2
S GalenaPbS
S SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
S SphaleriteZnS
S AnglesitePbSO4
S LinaritePbCu(SO4)(OH)2
S LangiteCu4(SO4)(OH)6 · 2H2O
ClChlorine
Cl PyromorphitePb5(PO4)3Cl
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Ca DolomiteCaMg(CO3)2
FeIron
Fe ChalcopyriteCuFeS2
NiNickel
Ni MilleriteNiS
Ni TučekiteNi9Sb2S8
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu MalachiteCu2(CO3)(OH)2
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcopyriteCuFeS2
Cu SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Cu LinaritePbCu(SO4)(OH)2
Cu LangiteCu4(SO4)(OH)6 · 2H2O
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Zn SphaleriteZnS
Zn HydrozinciteZn5(CO3)2(OH)6
MoMolybdenum
Mo WulfenitePb(MoO4)
SbAntimony
Sb TučekiteNi9Sb2S8
Sb BindheimitePb2Sb2O6O
PbLead
Pb CerussitePbCO3
Pb PyromorphitePb5(PO4)3Cl
Pb GalenaPbS
Pb AnglesitePbSO4
Pb BindheimitePb2Sb2O6O
Pb LinaritePbCu(SO4)(OH)2
Pb WulfenitePb(MoO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Silurian
419.2 - 443.8 Ma



ID: 3185808
Paleozoic sedimentary rocks

Age: Silurian (419.2 - 443.8 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Llandovery
433.4 - 443.8 Ma



ID: 2034671
Llandovery Rocks (Undifferentiated)

Age: Llandovery (433.4 - 443.8 Ma)

Lithology: Mudstone, siltstone and sandstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Ordovician
443.8 - 485.4 Ma



ID: 3159410
Ordovician limestone

Age: Ordovician (443.8 - 485.4 Ma)

Lithology: Limestone

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: May 24, 2019 18:02:27 Page generated: May 9, 2019 02:55:04
Go to top of page