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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Opal-AN from
Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Opal var: Opal-AN
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal-AN data
Locality Data:Click here to view Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:31349
Long-form Identifier:1:3:31349:0
GUID (UUID V4):0
Nearest other occurrences of Opal-AN
12.9km (8.0 miles) ⓘHayes Ledge Quarries (East and West), Greenwood, Oxford County, Maine, USA
13.3km (8.3 miles) ⓘHeikkinen Quarry, Greenwood, Oxford County, Maine, USA
19.6km (12.2 miles) ⓘLord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
21.9km (13.6 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
22.0km (13.7 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
22.1km (13.7 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
25.8km (16.0 miles) ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA
26.2km (16.3 miles) ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA
28.2km (17.5 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
29.0km (18.0 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
References
Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
 
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