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Stillwellite-(Ce)


Stillwellite-(Ce) : (Ce,La,Ca)BSiO5

Photo Copyright © Stephan Wolfsried 2005  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Québec, Canada
Laszlo Horvath assumed this to be an Ancylite group member. Analysis turned out to be Stillwellite-(Ce). EDX: 70.1% Si, 16.4% Ce, 8.6% La, 5% Nd
Picture width 2,5 mm. Collection and photo Stephan Wolfsried

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