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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Annite from
Nemo's Quarry, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Annite
Formula:KFe32+(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Annite data
Locality Data:Click here to view Nemo's Quarry, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:920231
Long-form Identifier:1:3:920231:3
GUID (UUID V4):0
Nearest other occurrences of Annite
0.2km (0.1 miles) ⓘLong Hill Quarry, Haddam, Middlesex County, Connecticut, USA
0.5km (0.3 miles) ⓘGulf Quarry, Haddam, Middlesex County, Connecticut, USA
0.6km (0.4 miles) ⓘCivilian Conservation Corps Quarry (CCC Quarry; Smith Quarry; Turkey Hill quarry lot), Haddam, Middlesex County, Connecticut, USA
0.7km (0.5 miles) ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA
2.8km (1.7 miles) ⓘUltramafic rock bodies, Haddam, Middlesex County, Connecticut, USA
3.8km (2.4 miles) ⓘGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
4.6km (2.9 miles) ⓘForest Ridge Road, Higganum, Haddam, Middlesex County, Connecticut, USA
4.9km (3.1 miles) ⓘFeldspar quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
5.4km (3.4 miles) ⓘHaddam Volunteer Fire Station, Higganum, Haddam, Middlesex County, Connecticut, USA
5.7km (3.5 miles) ⓘRock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
References
Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
 
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