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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Bournonite from
Tregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK


Locality type:Mine
Classification
Species:Bournonite
Formula:PbCuSbS3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bournonite data
Locality Data:Click here to view Tregardock Mine (Tregarget Mine), Treligga, St Teath, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:612397
Long-form Identifier:1:3:612397:0
GUID (UUID V4):0
Nearest other occurrences of Bournonite
2.7km (1.7 miles) ⓘBarrett 's Zawn, St Teath, Cornwall, England, UK
3.4km (2.1 miles) ⓘBounds Cliff, St Endellion, Cornwall, England, UK
4.6km (2.8 miles) ⓘTreore Mine, St Endellion, Cornwall, England, UK
5.2km (3.3 miles) ⓘPengenna Mine, St Kew, Cornwall, England, UK
5.5km (3.4 miles) ⓘWheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Cornwall, England, UK
5.7km (3.5 miles) ⓘTresungers Mine (Rose Mine; Wheal Arthur), Port Isaac, St Endellion, Cornwall, England, UK
16.8km (10.4 miles) ⓘCredis Mine (Cridis Mine; Criddis Mine), Padstow, Cornwall, England, UK
18.5km (11.5 miles) ⓘTreveglos Mine (Wheal Friendship), Trevorgus and Treveglos Mines, St Merryn, Cornwall, England, UK
29.5km (18.3 miles) ⓘHerodsfoot Mine (North Herodsfoot Mine), Lanreath, Cornwall, England, UK
32.3km (20.1 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
References
Clayton, R. E., Spiro, B. (2000) Sulphur, carbon and oxygen isotope studies of early Variscan mineralisation and Pb-Sb vein deposits in the Cornubian orefield: implications for the scale of fluid movements during Variscan deformation. Mineralium Deposita, 35 (4) 315-331 doi:10.1007/s001260050244
 
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