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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Ankerite from
Drybrook Quarry, Drybrook, Forest of Dean, Gloucestershire, England, UK


Locality type:Quarry
Classification
Species:Ankerite
Formula:Ca(Fe2+,Mg)(CO3)2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Ankerite data
Locality Data:Click here to view Drybrook Quarry, Drybrook, Forest of Dean, Gloucestershire, England, UK
Data Identifiers
Mindat Occurrence Record ID:705461
Long-form Identifier:1:3:705461:7
GUID (UUID V4):0
Nearest other occurrences of Ankerite
51.9km (32.2 miles) ⓘBargoed Colliery, Bargoed, Caerphilly, Wales, UK
57.7km (35.9 miles) ⓘDeep Navigation Colliery, Treharris, Merthyr Tydfil, Wales, UK
64.5km (40.1 miles) ⓘBanwell Hill, Banwell, North Somerset, England, UK
66.8km (41.5 miles) ⓘFforchaman Colliery, Cwmaman, Rhondda Cynon Taf, Wales, UK
73.5km (45.7 miles) ⓘTorr Works Quarry, Cranmore, Mendip, Somerset, England, UK
78.1km (48.5 miles) ⓘInternational Colliery, Blaengarw, Bridgend, Wales, UK
81.5km (50.6 miles) ⓘNant Helen opencast coal mine, Onllwyn, Neath Port Talbot, Wales, UK
82.9km (51.5 miles) ⓘGlyn Gwilym Isaf Opencast, Clyne and Melincourt, Neath Port Talbot, Wales, UK
86.2km (53.5 miles) ⓘDalrhiw, Rhayader, Powys, Wales, UK
86.8km (53.9 miles) ⓘRhiwnant Mine, Rhayader, Powys, Wales, UK
References
Render, Paul (n.d.) Paul Render Collection.
 
and/or  
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