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
Gelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK


Locality type:Colliery
Classification
Species:Dickite
Formula:Al2(Si2O5)(OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dickite data
Locality Data:Click here to view Gelli Colliery (Globe), Gelli, Rhondda Cynon Taf, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:68165
Long-form Identifier:1:3:68165:6
GUID (UUID V4):0
Nearest other occurrences of Dickite
2.4km (1.5 miles) ⓘCambrian Colliery, Clydach Vale, Rhondda Cynon Taf, Wales, UK
3.4km (2.1 miles) ⓘFerndale Pits (Blaenllechau Colliery), Tylorstown, Rhondda Cynon Taf, Wales, UK
6.1km (3.8 miles) ⓘCwmneol Colliery (Morris's pit), Cwmaman, Rhondda Cynon Taf, Wales, UK
12.0km (7.5 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
16.1km (10.0 miles) ⓘPark Slip West (Margam Opencast), Cefn Cribwr, Bridgend, Wales, UK
16.8km (10.5 miles) ⓘLlanbradach Colliery, Llanbradach, Caerphilly, Wales, UK
22.8km (14.2 miles) ⓘMargam Pit, Margam Moors, Neath Port Talbot, Wales, UK
22.9km (14.2 miles) ⓘNant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
References
 
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