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Tourmaline from
Becker Quarry (Becker's Quarry), West Willington, Willington, Tolland Co., Connecticut, USA

Locality type:Quarry
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:A(D3)G6(Si6O18)(BO3)3X3Z
Formation:Primary
Comments:very sharp, lustrous pocket crystals to several cms. Species likely schorl or perhaps dravite.
Habit:trigonal elongated, striated prisms with rhombhedral terminations
Colour:black
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
References
References:Ague, J. J. (1995): Deep Crustal Growth of Quartz, Kyanite and Garnet into Large-Aperature, fluid-filled fractures, northeastern Connecticut, USA. Journal of Metamorphic Geology: 13: 299-314.
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Becker Quarry (Becker's Quarry), West Willington, Willington, Tolland Co., Connecticut, USA
Nearest other occurrences of Tourmaline
31.9km (19.8 miles) Brack Gem prospect (Brack prospect), East Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
35.7km (22.2 miles) Bozrah, New London Co., Connecticut, USA
36.6km (22.7 miles) Hollister prospects (Hollister Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
37.2km (23.1 miles) Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
37.3km (23.2 miles) Simpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
37.8km (23.5 miles) Tourmaline locality, Airline Railroad, East Hampton (Chatham), Middlesex Co., Connecticut, USA
38.1km (23.7 miles) Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex Co., Connecticut, USA
38.7km (24.0 miles) Gotta-Walden Prospect, Portland, Middlesex Co., Connecticut, USA
38.9km (24.1 miles) Walden Gem Quarry, Portland, Middlesex Co., Connecticut, USA
40.0km (24.8 miles) Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex Co., Connecticut, USA
 
Mineral and/or Locality  
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