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Pickeringite from
Harwinton, Litchfield Co., Connecticut, USA

Classification
Species:Pickeringite
Formula:MgAl2(SO4)4 · 22H2O
Formation:Secondary
Comments:Spongy mass of tiny fibrous crystals with included weathered-out mica flakes.
Habit:fibrous
Colour:pale yellow
Confirmation
Validity:Confirmed
Confirmation Methods:SEM-EDS
References
References:Harold Moritz collection
Data
Mineral Data:Click here to view Pickeringite data
Locality Data:Click here to view Harwinton, Litchfield Co., Connecticut, USA
Nearest other occurrences of Pickeringite
18.9km (11.8 miles) State Route 8 exit 37, Watertown, Litchfield Co., Connecticut, USA
43.6km (27.1 miles) Schoonmaker Mine (Cramer Mine), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
43.7km (27.1 miles) Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
47.5km (29.5 miles) State Forest Quarry #2 (State Forest No. 2 Mica Mine), Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
47.5km (29.5 miles) Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
52.6km (32.7 miles) Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
55.2km (34.3 miles) Old Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
55.4km (34.4 miles) Old Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
 
Mineral and/or Locality  
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