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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Erythrite from
Herodsfoot Mine (North Herodsfoot Mine), Lanreath, Cornwall, England, UK


Locality type:Mine
Classification
Species:Erythrite
Formula:Co3(AsO4)2 · 8H2O
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Erythrite data
Locality Data:Click here to view Herodsfoot Mine (North Herodsfoot Mine), Lanreath, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:789653
Long-form Identifier:1:3:789653:8
GUID (UUID V4):0
Nearest other occurrences of Erythrite
23.3km (14.5 miles) ⓘPolgooth Mine (Old Polgooth Mine; Polgooth United Mine; Tregontrees and Old Polgooth Mine), Polgooth, St Mewan, Cornwall, England, UK
24.8km (15.4 miles) ⓘOld Gunnislake Mine, Clitters United Mines, Gunnislake, Calstock, Cornwall, England, UK
26.1km (16.2 miles) ⓘSt Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, Cornwall, England, UK
28.8km (17.9 miles) ⓘSouth Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
31.8km (19.8 miles) ⓘWheal Trugo, Trebudannon, St Columb Major, Cornwall, England, UK
33.5km (20.8 miles) ⓘWillsworthy Mine, Sampford Spiney, West Devon, Devon, England, UK
33.7km (20.9 miles) ⓘPentireglaze Mine (Pentire Glaze Mine), Polzeath, St Minver, Cornwall, England, UK
36.5km (22.7 miles) ⓘNorth Mine (East Wheal Friendship), Devon United Mines, Peter Tavy, West Devon, Devon, England, UK
47.6km (29.6 miles) ⓘCligga Mine, Cligga Head, Perranporth, Perranzabuloe, Cornwall, England, UK
49.1km (30.5 miles) ⓘRunnaford Combe Mine (Combe Mine), West Buckfastleigh, Teignbridge, Devon, England, UK
References
Starkey, Roy (2012) The Herodsfoot mine, Lanreath, Cornwall, England. The Mineralogical Record, 43 (4) 411-486
 
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