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
Drws-y-Coed Mine (Drwy-y-Coed Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK


Locality type:Mine
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 Drws-y-Coed Mine (Drwy-y-Coed Mine), Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:44524
Long-form Identifier:1:3:44524:9
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
16.2km (10.1 miles) ⓘGloddfa Ganol Quarry (Oakley), Ffestiniog, Gwynedd, Wales, UK
18.3km (11.4 miles) ⓘManod Quarry (Manod New Setts Quarry), Ffestiniog, Gwynedd, Wales, UK
19.8km (12.3 miles) ⓘNant Ffrancon Formation, Llandygai, Gwynedd, Wales, UK
19.9km (12.4 miles) ⓘCwt y Bugail Quarry, Bro Machno, Conwy, Wales, UK
24.8km (15.4 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
26.5km (16.5 miles) ⓘTal y Fan, Caerhun, Conwy, Wales, UK
35.7km (22.2 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
35.8km (22.2 miles) ⓘHafotty Mine, Dyffryn Ardudwy, Gwynedd, Wales, UK
35.9km (22.3 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
38.0km (23.6 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
References
Braithwaite, Richard S.W. (1982) Wroewolfeite in Britain. The Mineralogical Record, 13 (3) 167-174pp.167-167
 
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