Locality type: | Mine |
Classification |
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Species: | Mattheddleite |
Formula: | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) |
Comments: | Colourless xls to 0.2mm, crusts to 5mm (XRD). Associated with caledonite, and susannite. 1st welsh occurance. |
Habit: | Prismatic |
Colour: | Colourless |
Abundance at site: | Very Rare |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals Based on Photo Data: |
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Caledonite | ⓘ3 photos of Mattheddleite associated with Caledonite at this locality. |
Susannite | ⓘ3 photos of Mattheddleite associated with Susannite at this locality. |
Chenite | ⓘ1 photo of Mattheddleite associated with Chenite at this locality. |
Data |
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Mineral Data: | Click here to view Mattheddleite data |
Locality Data: | Click here to view Esgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
Photo Gallery | View Gallery (4 photos) |
Data Identifiers |
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Mindat Occurrence Record ID: | 7498 |
Long-form Identifier: | 1:3:7498:8 |
GUID (UUID V4): | c010524a-cc55-4a81-833c-2f00baf0ef95 |
Nearest other occurrences of Mattheddleite |
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2.1km (1.3 miles) | ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
4.2km (2.6 miles) | ⓘBwlch Glas Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK |
8.1km (5.1 miles) | ⓘLlechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK |
9.9km (6.2 miles) | ⓘDaren Mine (Old Daren Mine; Darren Consolidated Mine; Daren United Mine; Great Darren Mine; Darren Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK |
16.9km (10.5 miles) | ⓘFrongoch Mine (Bron-y-Goch Mine; Llawynwnwch Mine), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK |
21.6km (13.4 miles) | ⓘHendre Felen Mine (Hendre quarry), Ysbyty Ystwyth, Ceredigion, Wales, UK |
22.2km (13.8 miles) | ⓘEsgair Mwyn Mine, Ysbyty Ystwyth, Ceredigion, Wales, UK |
References |
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Esgair Hir & Esgair Fraith mines, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK