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Bechererite from
Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Bechererite | |
| Formula: | Zn7Cu(OH)13[(SiO(OH)3(SO4)] | |
| Comments: | Colourless to pale blue-green cone-like crystals to 0.8mm in druse crusts to 2cms (XRD). Associated with caledonite, susannite, cerussite, hydrocerussite, hemimorphite. Examples from this mine are the first in Britain (third in mid-Wales) and probably the best in the world. | |
| Habit: | Prismatic inverted cone-like | |
| Colour: | Colourless white, pale green, and blue | |
| Quality for species: | Excellent - world class for species or very significant. (!!) | |
| Abundance at site: | Rare | |
| Confirmation | ||
| Validity: | Confirmed | |
| Confirmation Methods: | XRD | |
| Confirmation Details: | Where Tested and Reference ID: University of Manchester, UK | |
| Associated Minerals: | ||
| Associates: | Brianyoungite Caledonite Cerussite Covellite Galena Hemimorphite Namuwite Susannite | |
| Associated Minerals Based on Photo Data: | ||
| Hydrocerussite | 5 | |
| Hemimorphite | 5 | |
| Susannite | 4 | |
| Cerussite | 2 | |
| Galena | 1 | |
| Quartz | 1 | |
| Linarite | 1 | |
| Brianyoungite | 1 | |
| Namuwite | 1 | |
| Data | ||
| Mineral Data: | Click here to view Bechererite data | |
| Locality Data: | Click here to view Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK | |
| Photo Gallery | View Gallery (18 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 38940 | |
| Long-form Identifier: | 1:3:38940:2 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Bechererite | ||
| 8.3km (5.2 miles) | ⓘBwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK | |
| 14.9km (9.2 miles) | ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK | |
| 16.9km (10.5 miles) | ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK | |
| 24.0km (14.9 miles) | ⓘDylife Mine (Pen Dylife Mine; Esgairgaled Mine; Llechwedd Ddu Mine; Blaen Twymyn Mine), Dylife, Machynlleth, Powys, Wales, UK | |
| 61.0km (37.9 miles) | ⓘLlangynog Mine, Llangynog, Powys, Wales, UK | |
| References | ||
Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK