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Schorl from
Timms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex Co., Connecticut, USA

Locality type:Hill
Classification
Species:Schorl
Formula:Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:"Excellent doubly-terminated crystals of black tourmaline, 1 to 2 inches in length, and 1/2 to 1 inch in diameter are found at the Iolite locality, often covered with incrustation of autunite." (Davis, 1901).
Habit:short trigonal prisms, doubly-terminated
Colour:black
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
References
References:Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70.; Foye, W. G. (1922): Mineral Localities in the Vicinity of Middletown, Connecticut. (American Mineralogist 7:4-12).
Associated Minerals Based on Photo Data:
Magnetite3 photos of Schorl associated with Magnetite at this locality.
Garnet Group2 photos of Schorl associated with Garnet Group at this locality.
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Timms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex Co., Connecticut, USA
Photo GalleryView Gallery (13 photos)
Nearest other occurrences of Schorl
1.1km (0.7 miles) Almandine schorl and sillimanite locality, Haddam, Middlesex Co., Connecticut, USA
1.2km (0.8 miles) Hill above the parsonage, Haddam, Middlesex Co., Connecticut, USA
1.4km (0.9 miles) Chrysoberyl locality, Haddam, Middlesex Co., Connecticut, USA
1.5km (1.0 miles) Civilian Conservation Corps Quarry (CCC Quarry; Smith Quarry; Turkey Hill quarry lot), Haddam, Middlesex Co., Connecticut, USA
1.5km (1.0 miles) State Route 9 Interchange 8 - Beaver Meadow Road, Haddam, Middlesex Co., Connecticut, USA
1.6km (1.0 miles) Tourmaline locality, Haddam, Middlesex Co., Connecticut, USA
1.6km (1.0 miles) Civilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex Co., Connecticut, USA
1.6km (1.0 miles) Gulf Quarry, Haddam, Middlesex Co., Connecticut, USA
2.0km (1.2 miles) Long-lot Quarry, Haddam, Middlesex Co., Connecticut, USA
2.2km (1.4 miles) Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex Co., Connecticut, USA
 
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