Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Pyromorphite from
Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK


07960820017374860859619.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
01796240017272017765551.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
03628810017272017779834.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
03202300017272017831741.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
04784940017371583042287.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
01796240017272017765551.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
05439740017377754967706.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
03202300017272017831741.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
07960820017374860859619.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
01796240017272017765551.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
03479550017272017859495.jpg
Pyromorphite, etc.

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
03202300017272017831741.jpg
Pyromorphite

Llechwedd Helyg Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:Pyromorphite
Formula:Pb5(PO4)3Cl
Habit:Typical crystal forms
Colour:Yellow
Luminescent properties:None
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Quartz8
Malachite8
Wulfenite8
Goethite4
Chrysocolla4
Cerussite3
Data
Mineral Data:Click here to view Pyromorphite data
Locality Data:Click here to view Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
Photo GalleryView Gallery (16 photos)
Data Identifiers
Mindat Occurrence Record ID:17337
Long-form Identifier:1:3:17337:9
GUID (UUID V4):0
Nearest other occurrences of Pyromorphite
1.0km (0.6 miles) ⓘLletty Evanhen Mine (Vaughan Mine), Bontgoch, Trefeirig, Ceredigion, Wales, UK
1.1km (0.7 miles) ⓘGwaith Yr Afon mine (West Cwmsymlog Mine; Cwm Daren Mine; River Mine; Taliesan Mine), Goginan, Trefeirig, Ceredigion, Wales, UK
1.2km (0.7 miles) ⓘCerrig Yr Wyn Mine (Cerrigyrwyn Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
1.6km (1.0 miles) ⓘCwmdaren Mine (Cwm Darren Mine; Lefel Gopor Mine; Copper Level Mine; Twll y Mwyn Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
1.9km (1.2 miles) ⓘDaren Mine (Old Daren Mine; Darren Consolidated Mine; Daren United Mine; Great Darren Mine; Darren Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
2.0km (1.2 miles) ⓘMynydd Gorddu Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK
2.4km (1.5 miles) ⓘElgar Mine, Bontgoch (Elerch), Ceulanymaesmawr, Ceredigion, Wales, UK
3.2km (2.0 miles) ⓘCeunant Mine, Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
3.6km (2.3 miles) ⓘPengarigddu Mine, Goginan, Melindwr, Ceredigion, Wales, UK
3.9km (2.4 miles) ⓘBwlch Glas Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
References
Jones, A. D. (1987) The minerals of Llechwedd Helyg. UK Journal of Mines and Minerals 3, 25-27
 
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