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Author Topic: Ebay Bargain?  (Read 1489 times)

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Offline dinklepip

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Re: Ebay Bargain?
« Reply #10 on: October 04, 2010, 06:51:29 PM »
Quote from: Lustrousstone on October 04, 2010, 11:38:52 AM
Pete's thinking they might be uranium glass, I think.

no uranium, first thing I checked on  ;D
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Offline dinklepip

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Re: Ebay Bargain?
« Reply #11 on: October 23, 2010, 04:49:36 PM »
Quote from: Lustrousstone on October 04, 2010, 11:38:52 AM
Pete's thinking they might be uranium glass, I think.

OMG I completely missed that didn't I  :pb:  Just checked with my UV light and yes the yellow areas have a uranium content and glow
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Offline dinklepip

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Re: Ebay Bargain?
« Reply #12 on: October 23, 2010, 04:50:43 PM »
I said no then yes cus the colour is a bit different under my UV light than other pieces I have.  they are not terribly bright and the colour appears more orangy
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Offline Lustrousstone

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Re: Ebay Bargain?
« Reply #13 on: October 23, 2010, 04:52:12 PM »
In that case the answer is no uranium. That glow is from manganese.
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Offline dinklepip

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Re: Ebay Bargain?
« Reply #14 on: October 24, 2010, 12:19:34 PM »
Quote from: Lustrousstone on October 23, 2010, 04:52:12 PM
In that case the answer is no uranium. That glow is from manganese.

manganese ????????
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Offline glassobsessed

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Re: Ebay Bargain?
« Reply #15 on: October 24, 2010, 01:03:12 PM »
Manganese was often (and may still be in some places) added to a batch of glass to make it clear, reducing a 'tinge' of colour that could be present.

It reacts to UV light but not as strongly as uranium oxide. A search for manganese on this board will provide more examples and information.

John
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