Rocks of Ages

Historic questions, thoughts and other interesting stuff

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Kate Tiler
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Postby Kate Tiler » Tue Nov 06, 2007 12:53 pm

If you type some of the names of the stones into this search:

http://www.britishmuseum.org/explore/introduction.aspx

You find lots of pretty things! Example - type ruby in & you find 12 nice shiny things :)


http://www.katetiler.co.uk
http://www.companyofartisans.co.uk
"In art as in life everything is possible as long as it is based on love" Marc Chagall

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Neil of Ormsheim
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Postby Neil of Ormsheim » Tue Nov 06, 2007 7:01 pm

On the subject of artificially enhanced gemstones, I once saw rock crystal that had been exposed to gold vapour in a vacuum. The normal clear and colourless rock crystal had turned an amazing transparent blue. 8)


Lurv 'n' Kizzez

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Mad Monk of Mitcham
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Postby Mad Monk of Mitcham » Tue Nov 06, 2007 8:10 pm

This is called "Aqua Aura" and the coating is very thin, and can rub off.

A whole range of other metals can be used, with various colours as the result.

Concorde (the plane) had a gold plated windscreen to avoid cosmic radiation because it was flying so high.




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