On 8 Jun 2012 at 7:22, David D. Hillman wrote: > This element makes up the core for carbon arc lamps. This element is > 4X more abundant than tin. This element gives glass a "pure" yellow > color. What element is being described? Samarium? Best regards Matthias Mansfeld -- Matthias Mansfeld Elektronik * Printed Circuit Board Design and Assembly Neithardtstr. 3, D-85540 Haar, GERMANY Phone: +49-89-4620 0937, Fax: +49-89-4620 0938 E-Mail: [log in to unmask] Internet: http://www.mansfeld-elektronik.de ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________