Check the listing for details. Molybdenum doped glass bead - Mo5+ doped optical glass - element collection. Condition: New. Listed at 29.90 USD. Nice Molybdenum 5+ doped glass bead NEW! Glass bead doped with 0.2% Molybdenum (Mo 5+) Ions Size about 13mm - Weight ~ 1g - Material: Sr-Li Phosphate glass Nice glass bead. Each one handmade of phosphate glass in our lab. The beads shows a strong turquoise blue color. Discovered in 1871 by P.J. Hjelm in Uppsala, Sweden. Molybdenum is a lustrous, silvery colored metal which has an abundance of 1.5 ppm in the earth's crust. In many instances, it shows a resemblance to tungsten with which it tends to be paired in the transition series in the periodic table, but their chemistries tend to show more distinct differences than might be expected. Molybdenum has a high melting point and applications for the pure metal take advantage of this; for example, the pure material is used as resistance heating elements in furnaces, as filament supports in electric lamps, and as electrodes for mercury vapour lamps. Molybdenum is used as an alloying agent in certain grades of steel, Permalloys and Stellites (a series of alloys which contain varying proportions of Cr, Co, W and Mo, are very hard and are used in cutting tools and to protect surfaces subject to heavy wear). Source: ©Goodfellow.com scope of delivery You get one Nice Molybdenum 5+ doped glass bead NEW! shipping fees I am happy to combine shipping to save you money! Please contact me!