Dictionary » E » Erbium



(Science: chemistry, element) a rare metallic element associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Its salts are rose-coloured and give characteristic spectra. Its sesquioxide is called erbia.

atomic weight: 165.9

Abbreviation: er

Origin: NL. From Ytterby, in Sweden, where gadolinite is found. Cf. Terbium, yttrium, ytterbium.

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The Fiber Disease

... are photosensitive glasses, which can be used to make fiber-optic strain, vibration, and temperature sensors. This group has produced a new glass (Erbium doped-lead-telluriumgermanate), which efficiently transforms invisible infrared to green light (usable for better disk memories), and a new crystal ...

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by London
Mon Dec 25, 2006 2:59 pm
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 6258807

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