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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Marcasite from
Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK


Locality type:Mine
Classification
Species:Marcasite
Formula:FeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marcasite data
Locality Data:Click here to view Fowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:7445
Long-form Identifier:1:3:7445:2
GUID (UUID V4):0
Nearest other occurrences of Marcasite
13.5km (8.4 miles) ⓘHerodsfoot Mine (North Herodsfoot Mine), Lanreath, Cornwall, England, UK
15.3km (9.5 miles) ⓘSouth Terras Mine (Resugga & Tolgarrick Mine; Union Mine; Uranium Mine), St Stephen-in-Brannel, Cornwall, England, UK
21.8km (13.5 miles) ⓘWheal Mary Ann, Menheniot, Cornwall, England, UK
24.0km (14.9 miles) ⓘWheal Wrey, Wrey and Ludcott United Mines, St Ive, Cornwall, England, UK
26.6km (16.5 miles) ⓘOld Shepherds Mine (Wheal Rose), St Newlyn East, Cornwall, England, UK
28.3km (17.6 miles) ⓘTreburland Manganese Mine (Treburland manganese deposits), Altarnun, Cornwall, England, UK
28.6km (17.8 miles) ⓘTregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK
28.7km (17.8 miles) ⓘDuchy Peru Mine, Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
29.5km (18.4 miles) ⓘWheal Mexico (Trebellan Mine; incl. Treworthy Mine), Perranzabuloe, Cornwall, England, UK
31.8km (19.8 miles) ⓘHolmbush Mine, Callington United Mines (incl. Emmens United Mines), Stokeclimsland, Cornwall, England, UK
References
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
 
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