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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Pyrolusite from
Husband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA


Locality type:Quarry
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Husband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:657221
Long-form Identifier:1:3:657221:1
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
0.6km (0.4 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
0.8km (0.5 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.7km (1.0 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.9km (1.2 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
2.4km (1.5 miles) ⓘSouth Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.7km (1.7 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
3.0km (1.9 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
6.0km (3.7 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
8.5km (5.3 miles) ⓘGreat Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
8.7km (5.4 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
References
Betts, John H. (1999) The Quarries and Minerals of the Dayton Road District, South Glastonbury, Connecticut. Rocks & Minerals, 74 (2) 110-121 doi:10.1080/00357529909602524
 
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