HHomeBackground Color:He
LiBeNeodymium Main PageBlack White GrayBCNOFNe
NaMgNeodymium Pictures PageAlSiPSClAr
KCaNeodymium Technical DataScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr

Didymium glasses
An example of the element Neodymium

Sample Image    |    Spin Video    |    QuickTimeVR Rotation
Didymium glasses.
This is a lens from a pair of didymium eye glasses meant for glassblowers. The "di" refers to "two", the "dymium" refers to the two elements in the glass, which both end in "dymium". Those two are praseodymium and neodymium. Together they cause the glass to strongly absorb the sodium yellow emission line that creates the bring glow when glass is molten. Wearing them you can stare directly into the molten glass and see only a dull glow from the torch.
Source: eBay
Contributor: Theodore Gray
Acquired: 24 March, 2009
Text Updated: 25 March, 2009
Price: $50
Size: 2"
Composition: PrNd
The Elements book Mad Science book Periodic Table Poster  Click here to buy a book, photographic periodic table poster, card deck, or 3D print based on the images you see here!