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Magnesio-hastingsite from
Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada

Locality type:Tunnel
Classification
Species:Magnesio-hastingsite
Formula:{Na}{Ca2}{Mg4Fe3+}(Al2Si6O22)(OH)2
Comments:The name magnesiohastingsite was introduced by Billings for the magnesium-dominant hornblende, first investigated by Bancroft & Howard (1923) from Montreal, and the amphibole studied by Larsen & Billings (Billings 1928) from Iron Hill, Colorado. The end-member status was confirmed and the name was modified under the current nomenclature to magnesiohastingsite (Leake 1978, Leake et al. 1997).
Confirmation
Validity:Valid - Type Locality
References
References:BANCROFT, J.A. & HOWARD, W.V. (1923): The essexites of Mt. Royal, Montreal, P.Q. Transactions of the Royal Society of Canada 17, section 4, 13-43.
BILLINGS, M. (1928): The chemistry, optics and genesis of the hastingsite group of amphiboles.
American Mineralogist 13, 287-296.
LEAKE, B.E. (1978): Nomenclature of amphiboles. Canadian Mineralogist 16, 501-520.
LEAKE, B.E. et al. (1997): Nomenclature of amphiboles. Canadian Mineralogist 35, 219-246.
Data
Mineral Data:Click here to view Magnesio-hastingsite data
Locality Data:Click here to view Canadian National Railway tunnel, Mont Royal, Montréal, Québec, Canada
Nearest other occurrences of Magnesio-hastingsite
14.1km (8.8 miles) Lafarge Montreal East quarry (Carrière Lafarge Montréal-Est; Francon Montréal-Est quarry; Canada Cement quarry), Montréal-Est, Montréal, Québec, Canada
38.6km (24.0 miles) Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
 
矿物 and/or 产地  
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