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Riebeckite from
Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA

Classification
Species:Riebeckite
Comments:Variety crocidolite reported as lavender-blue, fibrous masses in gneiss.
However, "riebeckite" tested at the New York State Museum from other sites in the Hudson Highlands turned out to be other amphiboles.
Habit:fibrous
Colour:lavender-blue
Confirmation
Validity:Believed Valid
References
References:Jensen (1978) Minerals of New York State, 42-43
(Januzzi, 1966, 1989) (Trainer, 1942).
Data
Mineral Data:Click here to view Riebeckite data
Locality Data:Click here to view Tilly Foster Iron Mine, Brewster, Town of Southeast, Putnam Co., New York, USA
Nearest other occurrences of Riebeckite
101.4km (63.0 miles) A β“˜Sulphur Hill Mine (Sulfur Hill Mine), Andover Township, Sussex Co., New Jersey, USA
110.6km (68.7 miles) B β“˜Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA
Mineral and/or Locality  
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