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Schorl from
Tourmaline locality, Haddam, Middlesex Co., Connecticut, USA

Classification
Species:Schorl
Formula:Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:crystals the size of a needle to those four inches in diameter and twelve inches long...as brilliant as polished pieces of jet...often weighing several pounds (Davis, 1901).
Habit:prismatic
Colour:black
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Very common
Confirmation
Validity:Believed Valid
References
References:Davis, James W. (1901), The Minerals of Haddam, Conn. Mineral Collector: 8(5): 65-70.
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Tourmaline locality, Haddam, Middlesex Co., Connecticut, USA
Nearest other occurrences of Schorl
0.7km (0.4 miles) Chrysoberyl locality, Haddam, Middlesex Co., Connecticut, USA
1.0km (0.6 miles) Hill above the parsonage, Haddam, Middlesex Co., Connecticut, USA
1.6km (1.0 miles) Timms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex Co., Connecticut, USA
1.9km (1.2 miles) Feldspar quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
1.9km (1.2 miles) Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
2.0km (1.3 miles) Almandine schorl and sillimanite locality, Haddam, Middlesex Co., Connecticut, USA
2.2km (1.4 miles) Quarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
2.6km (1.6 miles) Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
2.8km (1.8 miles) Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex Co., Connecticut, USA
3.0km (1.8 miles) Gulf Quarry, Haddam, Middlesex Co., Connecticut, USA
 
Mineral and/or Locality  
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