Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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Hemimorphite from
Castell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgair Lle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK


Locality type:Mine
Classification
Species:Hemimorphite
Formula:Zn4Si2O7(OH)2 · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hemimorphite data
Locality Data:Click here to view Castell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgair Lle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18525
Long-form Identifier:1:3:18525:9
GUID (UUID V4):0
Nearest other occurrences of Hemimorphite
1.6km (1.0 miles) ⓘWest Nantycreiau Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
1.8km (1.1 miles) ⓘNantycreiau Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
4.2km (2.6 miles) ⓘLlywernog Mine (Ponterwyd Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
4.5km (2.8 miles) ⓘPenrhiw Mine (Penyberth Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
6.6km (4.1 miles) ⓘPengarigddu Mine, Goginan, Melindwr, Ceredigion, Wales, UK
7.0km (4.3 miles) ⓘGwaith-coch Mine, Devil's Bridge, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
7.1km (4.4 miles) ⓘBwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
7.1km (4.4 miles) ⓘCwmystwyth Mine, Cwmystwyth, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
7.2km (4.5 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
7.3km (4.5 miles) ⓘBwlch Mine (Bwlch Consols Mine; Bwlch United Mine; Bwlch Cwmerfin Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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