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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Dundasite from
Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK


Locality type:Mine
Classification
Species:Dundasite
Formula:PbAl2(CO3)2(OH)4 · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dundasite data
Locality Data:Click here to view Wheal Rose (Wheal Lomax), Porthleven, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:4721
Long-form Identifier:1:3:4721:0
GUID (UUID V4):0
Nearest other occurrences of Dundasite
11.4km (7.1 miles) ⓘPenberthy Croft Mine, St Hilary, Cornwall, England, UK
35.1km (21.8 miles) ⓘGravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
58.2km (36.2 miles) ⓘSouthern Merop Island, Gunver Head, Padstow, Cornwall, England, UK
58.3km (36.2 miles) ⓘCuddrabridge Mine (Guddrabridge Mine; Padstow Consols; Trevone Consols; Wheal Galway), Gunver Head, Padstow, Cornwall, England, UK
64.8km (40.3 miles) ⓘPort Quin Mine, Port Quin, St Minver, Cornwall, England, UK
65.0km (40.4 miles) ⓘTrevinnick Mine, St Kew, Cornwall, England, UK
67.9km (42.2 miles) ⓘPengenna Mine, St Kew, Cornwall, England, UK
75.5km (46.9 miles) ⓘWheal Mary Ann, Menheniot, Cornwall, England, UK
91.4km (56.8 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
 
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