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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Native Copper from
Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK


03790630017272034846302.jpg
Native Copper, etc.

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
09571660017272019411318.jpg
Native Copper

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
03790630017272034846302.jpg
Native Copper, etc.

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
09571660017272019411318.jpg
Native Copper

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
03790630017272034846302.jpg
Native Copper, etc.

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
09571660017272019411318.jpg
Native Copper

Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:Native Copper
Formula:Cu
Comments:Spear-like crystals to 1mm.
Habit:Prismatic, bladed
Colour:Dull copper
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals:
Associates:Brochantite
Cerussite
Cuprite
Langite
Malachite
Quartz
Schulenbergite
Associated Minerals Based on Photo Data:
Wroewolfeite1
Data
Mineral Data:Click here to view Native Copper data
Locality Data:Click here to view Frongoch Mine, Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:39318
Long-form Identifier:1:3:39318:6
GUID (UUID V4):0
Nearest other occurrences of Native Copper
4.6km (2.9 miles) ⓘGlogfawr Mine, Lisburne Lead and Silver Mines, Ysbyty Ystwyth, Ceredigion, Wales, UK
8.2km (5.1 miles) ⓘCwmystwyth Mine, Cwmystwyth, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
10.1km (6.3 miles) ⓘGwaith Yr Afon mine (West Cwmsymlog Mine; Cwm Daren Mine; River Mine; Taliesan Mine), Goginan, Trefeirig, Ceredigion, Wales, UK
14.9km (9.2 miles) ⓘEaglebrook Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
18.8km (11.7 miles) ⓘHafod Feddgar Mine, Llanidloes, Powys, Wales, UK
19.5km (12.1 miles) ⓘYstrad Einion Mine (Dolgoch Mine), Furnace, Ysgubor-y-coed, Ceredigion, Wales, UK
19.8km (12.3 miles) ⓘGeufron Mine, Llanidloes, Powys, Wales, UK
20.3km (12.6 miles) ⓘLodge Park Trial, Tre'r-ddol, Llangynfelyn, Ceredigion, Wales, UK
21.0km (13.0 miles) ⓘGwestyn Mine, Llanidloes, Powys, Wales, UK
24.0km (14.9 miles) ⓘDylife Mine (Pen Dylife Mine; Esgairgaled Mine; Llechwedd Ddu Mine; Blaen Twymyn Mine), Dylife, Machynlleth, Powys, Wales, UK
References
Green, D.I., Rust, S.A., Mason, J.S. (1996) Classic British mineral localities: Frongoch mine, Dyfed. UK Journal of Mines and Minerals 17, Rockbottom Publications. 29-39
Rust, Steve A. (2019) Minerals of the Frongoch Mine. Published by the author, 180 pages. ISBN 978-1-9162641-0-6.
 
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