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There is S in there too

When??mixed powdered rock with dil HCl ,some minor effervescence took place?

After attempting to dry,there was rotten egg smell suggestive of H2S

I tried??casually heating and doping with sulfur,,..no change??in glow intensity??

On Thursday, October 24, 2024, 12:08 AM, Dude <dfemer@...> wrote:

Zircon’s are noted for hosting REE and the XRF shows that. The sodalite Cl is also seen in the XRF The optical spectra is a good match based on that paper.

Dud

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From: [email protected] [mailto:[email protected]] On Behalf Of taray singh via groups.io
Sent: Wednesday, October 23, 2024 8:03 AM
To: [email protected]
Subject: Re: [OpticalSpectroscopyGroup] [XRF-Page-2] syenite

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Zircon coexisting with florescent orange sodalite will give yellow florescense

This zircon florescense is typically a broad yellow band at 575 nm

There??is a slope in this region with both 405 nm and 365 UV excitation?

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There are florescent lines from 600 to 700 nm spectrum?

No ones??knows with certainty what is causing this lines besides the possibility of REEs?

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Work with synthetic sodalite indicates that it is the presence of sulfur as a polysulfide which is responsible for the fluorescence of sodalite.

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Pics of florescent close ups spectrum of 405 nm and 365 excitation and article?

Thanks?

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On Wednesday, October 23, 2024, 10:59 PM, taray singh via groups.io <sukhjez@...> wrote:

File and pics to note