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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Magnetite from
Polyphant Quarry, South Petherwin, Launceston, Cornwall, England, UK


Locality type:Quarry
Classification
Species:Magnetite
Formula:Fe2+Fe23+O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnetite data
Locality Data:Click here to view Polyphant Quarry, South Petherwin, Launceston, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:7276
Long-form Identifier:1:3:7276:2
GUID (UUID V4):0
Nearest other occurrences of Magnetite
3.8km (2.4 miles) ⓘTreburland Manganese Mine (Treburland manganese deposits), Altarnun, Cornwall, England, UK
4.7km (3.0 miles) ⓘTrewen Quarry, South Petherwin, Launceston, Cornwall, England, UK
5.4km (3.3 miles) ⓘWheal Truscott, St Stephens By Launceston Rural, Launceston, Cornwall, England, UK
10.5km (6.5 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
21.8km (13.6 miles) ⓘBarras Nose, Tintagel, Cornwall, England, UK
26.7km (16.6 miles) ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK
26.7km (16.6 miles) ⓘLanivet Consols (Tretoil Mine), Lanivet, Cornwall, England, UK
32.1km (19.9 miles) ⓘFowey Consols (incl. Wheal Treasure; Wheal Fortune; Wheal Chance), Tywardreath and Par, Cornwall, England, UK
35.4km (22.0 miles) ⓘTower Consols (Magnetic Iron Mine; incl. Wheal Click), Trezaise (Tresayes), Roche, Cornwall, England, UK
43.0km (26.7 miles) ⓘSt Austell Consols (incl. Wheal Hawkins), Downderry, St Stephen-in-Brannel, Cornwall, England, UK
References
 
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