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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Dickite from
Cwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK


Locality type:Colliery
Classification
Species:Dickite
Formula:Al2(Si2O5)(OH)4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Millerite1
Sphalerite1
Chamosite1
Data
Mineral Data:Click here to view Dickite data
Locality Data:Click here to view Cwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:70045
Long-form Identifier:1:3:70045:6
GUID (UUID V4):0
Nearest other occurrences of Dickite
3.9km (2.4 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
6.1km (3.8 miles) ⓘGelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
8.5km (5.3 miles) ⓘCambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
9.2km (5.7 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
16.4km (10.2 miles) ⓘLlanbradach Colliery, Llanbradach, Caerphilly, Wales, UK
21.6km (13.4 miles) ⓘNant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
21.9km (13.6 miles) ⓘPark Slip West (Margam Opencast), Cefn Cribwr, Bridgend, Wales, UK
27.7km (17.2 miles) ⓘMargam Pit, Margam Moors, Neath Port Talbot, Wales, UK
95.3km (59.2 miles) ⓘDylife Mine (Pen Dylife Mine; Esgairgaled Mine; Llechwedd Ddu Mine; Blaen Twymyn Mine), Dylife, Machynlleth, Powys, Wales, UK
References
Chamosite confirmed by XRD at the National Museum of Wales
 
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