Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Coed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UKi
Regional Level Types
Coed-Ely CollieryColliery
Coed ElyVillage
Rhondda Cynon TafCounty Borough
WalesCountry
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
51° 33' 49'' North , 3° 25' 16'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
ST015860
Kรถppen climate type:
Nearest Settlements:
PlacePopulationDistance
Tonyrefail9,317 (2017)2.3km
Llanharan5,755 (2011)3.1km
Brynna6,686 (2017)4.1km
Llantrisant14,422 (2017)4.2km
Beddau8,134 (2011)4.5km
Mindat Locality ID:
6897
Long-form identifier:
mindat:1:2:6897:3
GUID (UUID V4):
0
Other/historical names associated with this locality:
Mid Glamorgan; Glamorgan


Possibly the best known of the coalfield millerite locations, Coed Ely Colliery was opened in 1916 by The Welsh Navigation Steam Coal Co. Ltd. By 1938 there were 1,006 men employed.

Following reconstruction schemes in the 1950s & 60s, Coed Ely was linked underground and worked jointly with Cwm Colliery at Llantwit Fardre, over 5km to the east By the 1970's the collieries jointly produced 515,000 tons of steam coal a year with a workforce of 1,580 men.

Coed Ely Colliery closed in November 1986 and the site has since been landscaped.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Detailed Mineral List:

โ“˜ Baryte
Formula: BaSO4
โ“˜ Dolomite
Formula: CaMg(CO3)2
โ“˜ Galena
Formula: PbS
โ“˜ Jamborite
Formula: Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O
โ“˜ Marcasite
Formula: FeS2
โ“˜ Millerite
Formula: NiS
โ“˜ 'Ozocerite'
โ“˜ 'Ozocerite var. Hatchettite'
โ“˜ Pyrite
Formula: FeS2
โ“˜ Quartz
Formula: SiO2
โ“˜ Siderite
Formula: FeCO3
โ“˜ Siegenite
Formula: CoNi2S4
Description: References to Linnaeite from the south Wales coalfield are now thought to be Siegenite. See BEVENS, R. E. & HORรK, J.M., 1985. Siegenite in clay-ironstone nodules from the South Wales Coalfield. Journal of the Russel Society, 1, 83-85.
โ“˜ Sphalerite
Formula: ZnS

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
โ“˜Sphalerite2.CB.05aZnS
โ“˜Millerite2.CC.20NiS
โ“˜Galena2.CD.10PbS
โ“˜Siegenite2.DA.05CoNi2S4
โ“˜Pyrite2.EB.05aFeS2
โ“˜Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
โ“˜Quartz4.DA.05SiO2
โ“˜Jamborite4.FL.05Ni2+1-xCo3+x(OH)2-x(SO4)x ยท nH2O
Group 5 - Nitrates and Carbonates
โ“˜Siderite5.AB.05FeCO3
โ“˜Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
โ“˜Baryte7.AD.35BaSO4
Unclassified
โ“˜'Ozocerite
var. Hatchettite'
-
โ“˜''-

List of minerals for each chemical element

HHydrogen
Hโ“˜ JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
CCarbon
Cโ“˜ DolomiteCaMg(CO3)2
Cโ“˜ SideriteFeCO3
OOxygen
Oโ“˜ BaryteBaSO4
Oโ“˜ DolomiteCaMg(CO3)2
Oโ“˜ JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
Oโ“˜ QuartzSiO2
Oโ“˜ SideriteFeCO3
MgMagnesium
Mgโ“˜ DolomiteCaMg(CO3)2
SiSilicon
Siโ“˜ QuartzSiO2
SSulfur
Sโ“˜ BaryteBaSO4
Sโ“˜ GalenaPbS
Sโ“˜ JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
Sโ“˜ MarcasiteFeS2
Sโ“˜ MilleriteNiS
Sโ“˜ PyriteFeS2
Sโ“˜ SiegeniteCoNi2S4
Sโ“˜ SphaleriteZnS
CaCalcium
Caโ“˜ DolomiteCaMg(CO3)2
FeIron
Feโ“˜ MarcasiteFeS2
Feโ“˜ PyriteFeS2
Feโ“˜ SideriteFeCO3
CoCobalt
Coโ“˜ JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
Coโ“˜ SiegeniteCoNi2S4
NiNickel
Niโ“˜ JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
Niโ“˜ MilleriteNiS
Niโ“˜ SiegeniteCoNi2S4
ZnZinc
Znโ“˜ SphaleriteZnS
BaBarium
Baโ“˜ BaryteBaSO4
PbLead
Pbโ“˜ GalenaPbS

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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.
 
and/or  
Mindat.orgยฎ is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindatยฎ and mindat.orgยฎ are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are ยฉ OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833โ€“844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 14, 2026 08:53:43 Page updated: April 11, 2026 18:37:55
Go to top of page