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To:
Palter
Iolite is the name of the violet-blue gemstone that the Vikings used to help them navigate. It is called the water sapphire. Iolite was used as a polarizing filter to determine the direction of the sun.
http://www.docstoc.com/docs/39726618/Gemstone-%E2%80%93-Iolite-the-gem-of-the-Viking-and-Navigation
22
posted on
02/01/2011 5:13:09 PM PST
by
NorwegianViking
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To:
NorwegianViking
You managed to link that back to this thread...
23
posted on
02/01/2011 5:28:39 PM PST
by
null and void
(We are now in day 742 of our national holiday from reality. - 0bama really isn't one of US.)
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