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
Berry-Havey Quarry, Poland, Androscoggin County, Maine, USA


Locality type:Quarry
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 Berry-Havey Quarry, Poland, Androscoggin County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:30296
Long-form Identifier:1:3:30296:2
GUID (UUID V4):0
Nearest other occurrences of Rockbridgeite
28.3km (17.6 miles) ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA
42.2km (26.2 miles) ⓘEmmons Quarry, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
45.8km (28.4 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
59.5km (37.0 miles) ⓘRed Hill quarries, Rumford, Oxford County, Maine, USA
62.3km (38.7 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
62.4km (38.8 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
62.5km (38.8 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
62.5km (38.8 miles) ⓘNevel Quarry, Newry, Oxford County, Maine, USA
63.5km (39.4 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
References
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
 
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