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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Marcasite from
Brynarian Mine (Cardigan Bay Consols Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Brynarian Mine (Cardigan Bay Consols Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:39603
Long-form Identifier:1:3:39603:1
GUID (UUID V4):0
Nearest other occurrences of Marcasite
1.3km (0.8 miles) ⓘErglodd mine (Eurglawdd Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
2.4km (1.5 miles) ⓘAlltycrib Mine (Talybont Mine; Middleton Mine; North Cardigan Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
5.2km (3.2 miles) ⓘBlaenceulan Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
6.9km (4.3 miles) ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
6.9km (4.3 miles) ⓘLlechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
7.5km (4.7 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
8.9km (5.5 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
14.3km (8.9 miles) ⓘPlynlimon Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
14.4km (9.0 miles) ⓘYstumtuen Mine, Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
14.7km (9.1 miles) ⓘPenrhiw Mine (Penyberth Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
References
 
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