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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Rockbridgeite from
Phoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK


Locality type:Mine
Classification
Species:Rockbridgeite
Formula:(Fe2+0.5Fe3+0.5)2Fe33+(PO4)3(OH)5
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rockbridgeite data
Locality Data:Click here to view Phoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:9585
Long-form Identifier:1:3:9585:3
GUID (UUID V4):0
Nearest other occurrences of Rockbridgeite
0.4km (0.2 miles) ⓘWheal Phoenix, Phoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK
18.5km (11.5 miles) ⓘEast Wheal Russell, Gulworthy, West Devon, Devon, England, UK
20.1km (12.5 miles) ⓘNew East Wheal Russell (South Wheal Crebor), Gulworthy, West Devon, Devon, England, UK
30.0km (18.6 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
51.9km (32.3 miles) ⓘGravel Hill Mine (Cliff Iron Mine; Penhale Iron Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UK
65.4km (40.6 miles) ⓘDownrew Quarry, Bishop's Tawton, North Devon, Devon, England, UK
References
Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp.
 
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