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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Malachite from
Castell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgair Lle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK


01573960017272036265866.jpg
Malachite

Castell Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
01573960017272036265866.jpg
Malachite

Castell Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
01573960017272036265866.jpg
Malachite

Castell Mine, Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
Locality type:Mine
Classification
Species:Malachite
Formula:Cu2(CO3)(OH)2
Comments:Xls to 1mm
Habit:Acicular crystals, botryoidal
Colour:Green
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Malachite data
Locality Data:Click here to view Castell Mine (Dyffryn Castell Mine; New Castell Mine; West Esgair Lle Mine; Gwaithddu Mine; Cripiau Bach Mine), Ponterwyd, Cwmrheidol, Ceredigion, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:16792
Long-form Identifier:1:3:16792:5
GUID (UUID V4):0
Nearest other occurrences of Malachite
3.7km (2.3 miles) ⓘMynach Vale Mine (Ty Gwyn Mine; De Broke Mine), Devil's Bridge, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
4.3km (2.6 miles) ⓘBwlchgwyn Mine (Nanteos Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
4.5km (2.8 miles) ⓘPenrhiw Mine (Penyberth Mine), Ystumtuen, Cwmrheidol, Ceredigion, Wales, UK
7.0km (4.3 miles) ⓘNantyrarian Mine (Silver Stream Mine. Blaendyffryn Mine), Goginan, Melindwr, Ceredigion, Wales, UK
7.1km (4.4 miles) ⓘBwlchrhennaid Mine (Level Newydd Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK
7.1km (4.4 miles) ⓘCwmystwyth Mine, Cwmystwyth, Upper Llanfihangell-y-Creuddyn, Ceredigion, Wales, UK
8.0km (5.0 miles) ⓘNant yr Eira mine (Snowbrook mine), Hafren Forest, Powys, Wales, UK
8.0km (5.0 miles) ⓘHenfwlch Mine, Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
8.2km (5.1 miles) ⓘHafan Mine (Canninog Mine; Bwlch Canninog Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
8.5km (5.3 miles) ⓘCamdwrbach Mine (Cambrian South Mine), Tal-y-bont, Ceulanymaesmawr, Ceredigion, Wales, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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