| Locality type: | Quarry |
| Classification |
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| Species: | Marcasite |
| Formula: | FeS2 |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals Based on Photo Data: |
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| Calcite | ⓘ1 photo of Marcasite associated with Calcite at this locality. |
| Data |
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| Mineral Data: | Click here to view Marcasite data |
| Locality Data: | Click here to view Vaynor Quarry, Trefechan, Merthyr Tydfil, Wales, UK |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 67775 |
| Long-form Identifier: | 1:3:67775:0 |
| GUID (UUID V4): | 036332ac-57db-44e4-896b-1cb01019c556 |
| Nearest other occurrences of Marcasite |
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| 16.6km (10.3 miles) | ⓘParc Colliery (Park), Cwmparc, Rhondda Cynon Taf, Wales, UK |
| 20.1km (12.5 miles) | ⓘBig Pit (Colliery), Blaenavon, Torfaen, Wales, UK |
| 21.3km (13.2 miles) | ⓘWyllie Colliery, Wyllie, Caerphilly, Wales, UK |
| 22.4km (13.9 miles) | ⓘGlyn Gwilym Isaf Opencast, Clyne and Melincourt, Neath Port Talbot, Wales, UK |
| 23.5km (14.6 miles) | ⓘCoed-Ely Colliery, Coed Ely, Rhondda Cynon Taf, Wales, UK |
| 23.6km (14.7 miles) | ⓘLlest Colliery (Lluest Colliery), Pontyrhyl (Pont-y-rhyl), Bridgend, Wales, UK |
| 25.2km (15.7 miles) | ⓘTalachddu Mine, Talachddu, Felin-fach (Felinfach), Powys, Wales, UK |
| 28.1km (17.5 miles) | ⓘLlanilid West Opencast Coalmine, Llanharan, Rhondda Cynon Taf, Wales, UK |
| 30.9km (19.2 miles) | ⓘPark Slip West (Margam Opencast), Cefn Cribwr, Bridgend, Wales, UK |
| 51.5km (32.0 miles) | ⓘCliff exposures and Wave platforms, Pwll Du Head, Pennard, Swansea, Wales, UK |
| References |
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| Reference Search (possible matching items) |
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 | | Catalog/List | | the speci es. Locality. including name of mine or quarry, nearest town and county, and six figure National...Loanhead quarry TallskerBay Whyte'a Cleuch Loanhead quarry Port Glasgow Loanheadquarry Loanhelld quarry Loanhead...Loanhead quarry Benalltmlne BMS NATIONAL REFERENCE COUECTION Ecton.Staffs. Ecton.Staffs. Scordale,Cumbria...Ecton.Staffs. Derbyshire Dyfed.Wales Trefelrig,Wales SlOay,Comwall Derbyshire Leadhllls,Scotl. Ecton...Scotland Beith.Scotland Beith,Scolland Rhlw.Uyn,Wales Rust,S. Rust.S. Rust.S. Rust.S. Rust,S. Rust.S |  | | Book | | A Mineralogy of Wales RfCHARD E. BEYfNS Ocpartmellf o[Geolngy, Nmin11a/Museum of\Valcs, Cardiff AMGUEDDFA...Colliery, Ponh, Mid Glamorgan. National Museum of Wales specimen 48.264.GR 175. ex Cymmer Welfare Library...CE 6 I CES IN WALES 9 30 127 138 6 INTRODUCTION The mineralogy of Wales is diverse. with over...reveal the presence of additional species new to Wales. and perhaps new to the British Isles. It is also...completely new to cience will be discovered in Wales. as techniques for analysing specimens become ever |  | | Journal (issue) | | ............................................ 7 Wales and West Branch ....................................... 20 Cave mineralisation at Hampstead Farm Quarry, a lecture by Pro£ Rankin; report by Frank Sharp...be: a. The larger mining fields such as Mid-Wales North Wales, West Cumberland, Leadhills, St'. Austell... or for larger areas such as Derbyshire or Mid-Wales, 50 to 500+ specimens. If you think this idea is...Lang; Ann Rathbone and, rejoining, Martin Brook Wales and West Branch:John Cooper; Linda Evans; Thomas |  | | Journal (issue) | | guides and organises field excursions both in the UK and abroad. Subscriptions are renewed annually on...aplite from the Dartmoor Granite in Meldon Aplite Quarry - see article on page 9. (photo Isobel Geddes)...disappear from document is welcomed as a Totternhoe Quarry my memory banks like a useful overview of Society...few pages, for example, the ‘Two Ronnies’, Merthyr Tydfil (‘once iron-making capital of the world’),...sheet-flood sediments, which Finely disseminated pyrite/marcasite in the mudstones tend become finer upwards. Interbedded |  | | Book | | permission of the author. Printed and bound in the UK by: BookPrintingUK Remus House, Coltsfoot Drive,...Minerals and became regular exhibitors at many of the UK mineral shows over the following years. We also visited...We collected together for many years, both in the UK and on the continent. I also helped Ian out later... I helped out at all of the mineral shows in the UK and on the continent, and later with the Bruce &...During this period, I was going back and forth to the UK and worldwide shows and projects, as well as keeping |  | | Book | | Geography, University of Bristol, Bristol BS8 lSS, UK ICHIRO SUNAGAWA, Kashiwa-cho 3-54-2, Tmchikawa, Tokyo...University, PO. Box 227, Whiteknights, Reading, RG6 2AB, UK ix CONTENTS List of Contributors.. ............the protore. The decomposition of pyrite and marcasite, which are abundant in all these deposits, produces...contrast to some other replacement processes, pyrite/marcasite replaces the original calcium carbonate, fills...(FeS2) with less frequent occurrence of dimorphous marcasite. This replacement process is assumed to be a |
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Vaynor Quarry, Trefechan, Merthyr Tydfil, Wales, UK