Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced 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 MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Ty-newydd Mine, Bontgoch, Trefeirig, Ceredigion, Wales, UKi
Regional Level Types
Ty-newydd MineMine (Inactive)
Bontgoch- not defined -
Trefeirig- not defined -
CeredigionCounty
WalesCountry
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
52° 28' 1'' North , 3° 55' 10'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN697872
Type:
Mine (Inactive) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Bow Street1,572 (2017)7.8km
Capel Bangor256 (2017)7.9km
Borth1,269 (2017)9.2km
Aberdyfi725 (2017)12.1km
Aberystwyth18,749 (2017)12.5km
Mindat Locality ID:
333127
Long-form identifier:
mindat:1:2:333127:2
GUID (UUID V4):
0
Other/historical names associated with this locality:
Tynewydd


An interesting little mine cut by a stream along the valley floor. To one side on the steep hill are 3 shafts, a wheelpit and building and a blocked level (?). Below the shafts is a further blocked level though without significant tips or dumps. On the opposite bank of the stream is a bob pit, a flooded adit and a small dump which contains abundant galena. See the historical map for the arrangement of the pumping rods. September 2019.

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


5 valid minerals.

Detailed Mineral List:

Dolomite
Formula: CaMg(CO3)2
Galena
Formula: PbS
Description: The galena is thinly distributed in the grey mudstone occasionally as small bunches with a more cubic form.
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Dolomite5.AB.10CaMg(CO3)2

List of minerals for each chemical element

CCarbon
C DolomiteCaMg(CO3)2
OOxygen
O DolomiteCaMg(CO3)2
O QuartzSiO2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
CaCalcium
Ca DolomiteCaMg(CO3)2
FeIron
Fe PyriteFeS2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent

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.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: September 4, 2026 02:41:17 Page updated: August 18, 2025 12:03:59
Go to top of page