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


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz 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:44523
Long-form Identifier:1:3:44523:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.3km (0.8 miles) ⓘMynydd Drws-y-Coed, Nantlle Vale, Llanllyfni, Gwynedd, Wales, UK
6.8km (4.2 miles) ⓘMoel Hebog, Beddgelert, Gwynedd, Wales, UK
7.9km (4.9 miles) ⓘSygun Mine, Beddgelert, Gwynedd, Wales, UK
8.6km (5.3 miles) ⓘDinorwic Quarry, Llanddeiniolen, Gwynedd, Wales, UK
8.7km (5.4 miles) ⓘLliwedd Mine, Beddgelert, Gwynedd, Wales, UK
12.9km (8.0 miles) ⓘTwll Maen Grisial, Fron Olau, Prenteg, Dolbenmaen, Gwynedd, Wales, UK
13.5km (8.4 miles) ⓘPenrhyn Slate Quarry, Llandygai, Gwynedd, Wales, UK
14.5km (9.0 miles) ⓘBwlch y Plym Mine, Llanfrothen, Gwynedd, Wales, UK
15.2km (9.4 miles) ⓘPantywrach Mine, Llanfrothen, Gwynedd, Wales, UK
15.2km (9.4 miles) ⓘMinffordd Quarry, Llanfrothen, 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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