Sun violet glass

[Tandy]

I have a query about glass that had manganese dioxide in the mix when it was made, and later turned violet due to ultra violet radiation.

In chemical and/or physical terms, what exactly happens in that glass when it does turn purple?

Cheers

 

[bearswede]

Tandy...

Try this: http://webexhibits.org/causesofcolor/12.html

Ron

 

[bearswede]

Hey Folks...

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