CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Interesting article about microscopes
PostPosted: Mon Apr 14, 2014 12:30 pm 
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http://www.economist.com/blogs/babbage/ ... icroscopes

(I wonder whether the lens is moissanite or corundum)

cheers all
Hans Durstling
Moncton, Canada

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 Post subject: Re: Interesting article about microscopes
PostPosted: Mon Apr 14, 2014 12:58 pm 
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"(The lenses are actually bits of abrasive grit intended to roll around in tumblers that smooth-off metal parts.)"

seriously :?: :?:


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 Post subject: Re: Interesting article about microscopes
PostPosted: Mon Apr 14, 2014 4:19 pm 
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The article says borosilicate or corundum. That is a big 'or'.

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