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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Chlorite Group from
Cregenen (Cregennen), Arthog, Gwynedd, Wales, UK


Classification
Species:'Chlorite Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorite Group data
Locality Data:Click here to view Cregenen (Cregennen), Arthog, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:320767
Long-form Identifier:1:3:320767:3
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
5.0km (3.1 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
5.8km (3.6 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
5.9km (3.7 miles) ⓘHafotty Mine, Dyffryn Ardudwy, Gwynedd, Wales, UK
24.0km (14.9 miles) ⓘErglodd mine (Eurglawdd Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
24.2km (15.1 miles) ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
25.0km (15.5 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
25.5km (15.8 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
27.9km (17.3 miles) ⓘBryn-yr-Afr Mine, Ponterwyd, Trefeirig, Ceredigion, Wales, UK
30.8km (19.2 miles) ⓘManod Quarry (Manod New Setts Quarry), Ffestiniog, Gwynedd, Wales, UK
32.5km (20.2 miles) ⓘGloddfa Ganol Quarry (Oakley), Ffestiniog, Gwynedd, Wales, UK
References
Bevins, Richard E., Robinson, Douglas (1993) Parageneses of Ordovician sub-greenschist to greenschist facies metabasites from Wales, U.K. European Journal of Mineralogy, 5 (5) 925-936 doi:10.1127/ejm/5/5/0925
 
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