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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Spessartine from
Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Spessartine
Formula:Mn32+Al2(SiO4)3
Comments:species speculative
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Spessartine data
Locality Data:Click here to view Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:96329
Long-form Identifier:1:3:96329:5
GUID (UUID V4):0
Nearest other occurrences of Spessartine
0.3km (0.2 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.2km (0.7 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
1.3km (0.8 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.7km (1.1 miles) ⓘHollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
3.0km (1.9 miles) ⓘChamberlain Lane, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
3.6km (2.2 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
4.1km (2.6 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
4.9km (3.1 miles) ⓘHale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA
6.0km (3.7 miles) ⓘState Forest Quarry No. 1, East Hampton, Middlesex County, Connecticut, USA
6.2km (3.8 miles) ⓘNathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
References
Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA.
 
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