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


Locality type:Quarry
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Berry-Havey Quarry, Poland, Androscoggin County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:30264
Long-form Identifier:1:3:30264:3
GUID (UUID V4):0
Nearest other occurrences of Bertrandite
1.9km (1.2 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
2.0km (1.2 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
2.0km (1.2 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
2.0km (1.3 miles) ⓘGreenlaw Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
2.1km (1.3 miles) ⓘWade Quarry (Androscoggin Tourmaline prospect), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
19.5km (12.1 miles) ⓘMount Marie Quarries, Paris, Oxford County, Maine, USA
25.5km (15.9 miles) ⓘSlattery Quarry, Paris, Oxford County, Maine, USA
26.0km (16.2 miles) ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA
26.6km (16.6 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
26.8km (16.7 miles) ⓘOrchard Quarry, Buckfield, 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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