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
Hafotty Mine, Dyffryn Ardudwy, 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 Hafotty Mine, Dyffryn Ardudwy, Gwynedd, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:352018
Long-form Identifier:1:3:352018:5
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
4.2km (2.6 miles) ⓘTrial level, Vigra Mine, Llanelltyd, Gwynedd, Wales, UK
5.9km (3.6 miles) ⓘClogau St Davids Mine (Clogau Mine; St David's Mine), Llanelltyd, Gwynedd, Wales, UK
5.9km (3.7 miles) ⓘCregenen (Cregennen), Arthog, Gwynedd, Wales, UK
23.8km (14.8 miles) ⓘPrince Edward Mine (Moel Croesau), Trawsfynydd, Gwynedd, Wales, UK
26.4km (16.4 miles) ⓘCastell Carn Dochan, Llanuwchllyn, Gwynedd, Wales, UK
28.0km (17.4 miles) ⓘManod Quarry (Manod New Setts Quarry), Ffestiniog, Gwynedd, Wales, UK
28.3km (17.6 miles) ⓘErglodd mine (Eurglawdd Mine), Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK
29.4km (18.3 miles) ⓘGloddfa Ganol Quarry (Oakley), Ffestiniog, Gwynedd, Wales, UK
29.5km (18.3 miles) ⓘEsgair Hir & Esgair Fraith mines (Cambrian Mine; Cardigan Consolidated Mine; Welsh Potosi Mine; Kylon Potosi Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
30.7km (19.1 miles) ⓘCwt y Bugail Quarry, Bro Machno, Conwy, Wales, UK
References
P.M. Allen, A.A. Jackson: "Geological Excursions in the Harlech Dome", BGS, 1985
 
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