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Sillimanite from
Unnamed building stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Sillimanite
Formula:Al2(SiO4)O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sillimanite data
Locality Data:Click here to view Unnamed building stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:612312
Long-form Identifier:1:3:612312:3
GUID (UUID V4):52c998fe-7955-415b-9b4d-55356ea52588
Nearest other occurrences of Sillimanite
3.9km (2.4 miles) Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA
9.3km (5.8 miles) Sunset Quartzite Quarry, East Glastonbury, Glastonbury, Hartford County, Connecticut, USA
9.4km (5.8 miles) Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex County, Connecticut, USA
10.1km (6.3 miles) Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA
12.8km (8.0 miles) Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
14.4km (8.9 miles) Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
14.8km (9.2 miles) Almandine schorl and sillimanite locality, Haddam, Middlesex County, Connecticut, USA
15.0km (9.3 miles) Arnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex County, Connecticut, USA
15.7km (9.8 miles) Westchester, Colchester, New London County, Connecticut, USA
17.1km (10.6 miles) State Route 9 rock cuts, Haddam, Middlesex County, Connecticut, USA
References
 
Mineral and/or Locality  
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