SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
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 ArticlesThe ElementsBooks & Magazines
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 CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Bwlchgwyn Mine (Nanteos Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UKi
Regional Level Types
Bwlchgwyn Mine (Nanteos Mine)Mine
Ystumtuen- not defined -
Cwmrheidol- not defined -
Ceredigion- not defined -
WalesCountry
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 52° 23' 35'' North , 3° 51' 12'' West
Latitude & Longitude (decimal): 52.39320,-3.85338
GeoHash:G#: gcm603fh9
UK National Grid Reference:SN739789
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Capel Bangor256 (2017)8.0km
Pontrhydfendigaid712 (2017)12.3km
Llanilar1,085 (2017)12.4km
Bow Street1,572 (2017)13.0km
Penparcau3,088 (2011)15.0km
Other/historical names associated with this locality:Dyfed; Cardiganshire


Located just east of the Penrhiw Mine, with which it was worked together for some time during the 19th century.

Approached from the village of Ystumtuen across a small stream the road bisects the lower end of the site left of centre. To the left of the road there is a steep bank of crushed material whilst to the right there is a large heap of crushed orange-yellow sand with some poor sphalerite waste.

A road then turns off to the right above which are several building ruins and rock dumps along with a deep shaft collar. The rock dumps are stuffed with massive lumps of pyrite (marcasite).

A footpath leads up through the site beside a stream to a saddle in the hillside which is mostly taken up by 2 reservoirs. A deep shaft is found to the right of the valley and a series of shaft collars and costean pits run in a line up the right hand side of the valley. The lower valley floor is dominated by piles of crushed sand. It is from this part of the site that the better quality galena samples come.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
British IslesGroup of Islands

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
Galena
Formula: PbS
Linarite
Formula: PbCu(SO4)(OH)2
Malachite
Formula: Cu2(CO3)(OH)2
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS
Strontianite
Formula: SrCO3

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Strontianite5.AB.15SrCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Linarite7.BC.65PbCu(SO4)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Strontianite14.1.3.3SrCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Linarite30.2.3.1PbCu(SO4)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H LinaritePbCu(SO4)(OH)2
CCarbon
C MalachiteCu2(CO3)(OH)2
C StrontianiteSrCO3
OOxygen
O QuartzSiO2
O MalachiteCu2(CO3)(OH)2
O LinaritePbCu(SO4)(OH)2
O StrontianiteSrCO3
SiSilicon
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S LinaritePbCu(SO4)(OH)2
S GalenaPbS
S SphaleriteZnS
S PyriteFeS2
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcopyriteCuFeS2
Cu LinaritePbCu(SO4)(OH)2
ZnZinc
Zn SphaleriteZnS
SrStrontium
Sr StrontianiteSrCO3
PbLead
Pb LinaritePbCu(SO4)(OH)2
Pb GalenaPbS

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]

Silurian
419.2 - 443.8 Ma



ID: 3160805
Silurian claystone

Age: Silurian (419.2 - 443.8 Ma)

Lithology: Major:{claystone}, Minor{sandstone,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]

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]

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: October 15, 2019 09:44:22 Page generated: January 10, 2019 15:46:24
Go to top of page