CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Wed Jun 12, 2019 12:28 pm 
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Question.
Could the separation be made with a raman?


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Wed Jun 12, 2019 12:35 pm 
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Yes. Raman also readily separates the two. However Raman is probably even less available to the average gemologist...

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Christopher P. Smith


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Wed Jun 12, 2019 3:22 pm 
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Ideal usecase for raman. Well, actually bytownite/scapolite more so, they overlap on almost every major indicator, and there was a rash of pale yellow bytownite being sold as scapolite rough a couple years back.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Wed Jun 12, 2019 7:50 pm 
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Real Gemologists have Raman.... :roll:


Last edited by 1bwana1 on Thu Jun 13, 2019 10:27 am, edited 1 time in total.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Thu Jun 13, 2019 5:53 am 
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1bwana1 wrote:
Real Gemilogists have Raman.... :roll:


:lol:

But we use it and love it.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Thu Jun 13, 2019 2:04 pm 
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Not everyone has one, but Everybody Loves Raman.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 10:34 am 
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Is it not a bit sad, when you don't have to search and make your mind work, and use your knowledge bit by bit, but only ask from a machine what this stone is ?


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 10:47 am 
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Hi, what about color shift in amethyst vs scapolite ?


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 11:34 am 
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75TURBO, I don't think color shift in amethyst (which I refer to as metamerism) would be definitive.

Isi, as someone who uses my GemmoRaman daily, no I don't think it is sad. It is just another tool. Experience is necessary to interpret whether the results given by this tool are correct. Just like all our other tools.


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 11:39 am 
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Isi wrote:
Is it not a bit sad, when you don't have to search and make your mind work, and use your knowledge bit by bit, but only ask from a machine what this stone is ?


Only a minute for example to separate Taaffeite from Musgravite...

But I agree that it is important to use your knowledge and the classic instruments - you learn so much more about gems.

You need the basics and skills.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 6:08 pm 
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Isi wrote:
Is it not a bit sad, when you don't have to search and make your mind work, and use your knowledge bit by bit, but only ask from a machine what this stone is ?

I like being able to get more specific and detailed information more quickly. It's not like using a refractometer or sg scale is any more sophisticated or mentally stimulating, plus I don't like the smell of refractometer fluid. If I want fun and games with a stone (above and beyond what I get from the raman, which is decidedly fun and interesting) that is what my fleet of microscopes are for.

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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Fri Jun 14, 2019 7:43 pm 
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Isi wrote:
Is it not a bit sad, when you don't have to search and make your mind work, and use your knowledge bit by bit, but only ask from a machine what this stone is ?


It is about as sad as getting to fly over oceans instead of having to swim.

Raman is a great technologically based tool. But it takes skill to use it to its fullest capabilities just like any other tool.

I am never sad using it, I am always happy I have it.


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 Post subject: Re: Scapolite vs. Amethyst
PostPosted: Sat Jun 15, 2019 2:34 am 
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1bwana1 wrote:
Isi wrote:
Is it not a bit sad, when you don't have to search and make your mind work, and use your knowledge bit by bit, but only ask from a machine what this stone is ?


It is about as sad as getting to fly over oceans instead of having to swim.

Raman is a great technologically based tool. But it takes skill to use it to its fullest capabilities just like any other tool.

I am never sad using it, I am always happy I have it.


It is never wrong if you can swim.

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