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 Post subject: Spectrum
PostPosted: Sat Sep 09, 2017 11:41 am 
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Hello. I have a question about Spectrum.

I have a taking a Gem Identification course.
For example, Do we see always the band at 437.5 for Non-Chrome Jadeite and Jadeite?
Or, are we not going to see the band for some natural Jadeite?

I think I am not be able to use the spectroscope well yet. So, I am thinking that I am not seeing the band.
But the instructor in the classroom said we don't see the band always...... Is that true?


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