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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Oligoclase from
Puzzle Mountain, Newry, Oxford County, Maine, USA


Locality type:Mountain
Classification
Species:Albite var: Oligoclase
Formula:(Na,Ca)[Al(Si,Al)Si2O8]
Comments:An20
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Oligoclase data
Locality Data:Click here to view Puzzle Mountain, Newry, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:720445
Long-form Identifier:1:3:720445:6
GUID (UUID V4):0
Nearest other occurrences of Oligoclase
5.1km (3.2 miles) ⓘKinglet Prospect, Newry, Oxford County, Maine, USA
43.9km (27.3 miles) ⓘSouth Waterford Mica prospect (Bear Mountain Prospect), Waterford, Oxford County, Maine, USA
45.1km (28.0 miles) ⓘHorse Hill locality, Norway, Oxford County, Maine, USA
48.2km (30.0 miles) ⓘState Route 4 road cut, Turner, Androscoggin County, Maine, USA
54.1km (33.6 miles) ⓘJackson Falls, Jackson, Carroll County, New Hampshire, USA
71.3km (44.3 miles) ⓘMonadnock Mountain, Lemington, Essex County, Vermont, USA
86.2km (53.5 miles) ⓘBurke Quarry, Kirby, Caledonia County, Vermont, USA
92.2km (57.3 miles) ⓘHavey #1 & #2 Quarries, Topsham, Sagadahoc County, Maine, USA
94.0km (58.4 miles) ⓘSwamp #1 Quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
94.0km (58.4 miles) ⓘSwamp #2 quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
References
Cheney, John T., Guidotti, Charles V. (1973) Paragonite contents of coexisting, but texturally different, muscovites from pelitic schists of the Puzzle Mountain area, Maine. American Mineralogist, 58 (11-12) 1076-1079
 
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