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
Search FormMinerals 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

Craig Rhiwarth Mine (Ochrycraig; North Llangynog), Llangynog, Powys, Wales, UKi
Regional Level Types
Craig Rhiwarth Mine (Ochrycraig; North Llangynog)Mine
LlangynogCommunity
PowysCounty
WalesCountry
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
08895930017272020015068.jpg
Rosasite

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
05343380017272020024493.jpg
Hydrozincite, etc.

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
08437960017361079408453.jpg
Hemimorphite, etc.

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
08895930017272020015068.jpg
Rosasite

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
03339620017361079435641.jpg
Hydrozincite, etc.

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
08437960017361079408453.jpg
Hemimorphite, etc.

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
08895930017272020015068.jpg
Rosasite

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
05343380017272020024493.jpg
Hydrozincite, etc.

Craig Rhiwarth Mine, Llangynog, Powys, Wales, UK
Latitude & Longitude (WGS84):
52° 49' 32'' North , 3° 24' 20'' West
Latitude & Longitude (decimal):
52.82556,-3.40556
GRN:
N36W02
UK National Grid Reference:
SJ053263
Type:
Mine
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Llanrhaeadr-ym-Mochnant408 (2017)6.9km
Llanfyllin1,105 (2017)11.2km
Cynwyd542 (2017)14.9km
Bala1,974 (2017)16.0km
Meifod317 (2017)16.4km
Mindat Locality ID:
5221
Long-form identifier:
mindat:1:2:5221:7
GUID (UUID V4):
0
Other/historical names associated with this locality:
Montgomeryshire


The history of the mine is obscure and although being worked in the 1840s, production had finished some long time prior to 1878. Attempts to revive the mine under the names Ochrycraig or North Llangynog appear to have be largely unsuccessful as the only recorded returns were made by the old Craig Rhiwarth company - 240 tons of lead ore between 1846-56

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


21 valid minerals.

Detailed Mineral List:

ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Galena
Formula: PbS
ⓘ Harmotome
Formula: Ba2(Si12Al4)O32 · 12H2O
ⓘ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
ⓘ Hydrozincite
Formula: Zn5(CO3)2(OH)6
References:
S. Rust collection
ⓘ Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
ⓘ 'Limonite'
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
ⓘ Smithsonite
Formula: ZnCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ Witherite
Formula: BaCO3

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSmithsonite5.AB.05ZnCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘWitherite5.AB.15BaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘRosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
ⓘAurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
ⓘHydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘLangite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Group 9 - Silicates
ⓘHemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
ⓘHarmotome9.GC.10Ba2(Si12Al4)O32 · 12H2O
Unclassified
ⓘ'Limonite'-

List of minerals for each chemical element

HHydrogen
Hⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Hⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Hⓘ HydrozinciteZn5(CO3)2(OH)6
Hⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ Rosasite(Cu,Zn)2(CO3)(OH)2
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ HydrozinciteZn5(CO3)2(OH)6
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ Rosasite(Cu,Zn)2(CO3)(OH)2
Cⓘ SmithsoniteZnCO3
Cⓘ WitheriteBaCO3
OOxygen
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Oⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Oⓘ HydrozinciteZn5(CO3)2(OH)6
Oⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
Oⓘ Rosasite(Cu,Zn)2(CO3)(OH)2
Oⓘ SmithsoniteZnCO3
Oⓘ WitheriteBaCO3
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
SiSilicon
Siⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Siⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Siⓘ QuartzSiO2
SSulfur
Sⓘ BaryteBaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ GalenaPbS
Sⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ LangiteCu4(SO4)(OH)6 · 2H2O
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Rosasite(Cu,Zn)2(CO3)(OH)2
ZnZinc
Znⓘ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Znⓘ HemimorphiteZn4Si2O7(OH)2 · H2O
Znⓘ HydrozinciteZn5(CO3)2(OH)6
Znⓘ Rosasite(Cu,Zn)2(CO3)(OH)2
Znⓘ SmithsoniteZnCO3
Znⓘ SphaleriteZnS
BaBarium
Baⓘ BaryteBaSO4
Baⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Baⓘ WitheriteBaCO3
PbLead
Pbⓘ 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.

References

Bick, David E. (1978) The Old Metal Mines of Mid-Wales Vol. 5 - Aberdovey, Dinas Mawddwy and Llangynog. The Pound House.
Quick NavTopMineral ListOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® 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 © 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), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 21, 2026 14:51:35 Page updated: February 18, 2026 16:02:35
Go to top of page