CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: AN OVERVIEW OF MINERALS TOXICITY
PostPosted: Sat Mar 08, 2014 5:29 pm 
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Article available (and downloadable) at https://www.academia.edu/40433628/An_Ov ... s_Toxicity


Last edited by cascaillou on Mon Nov 11, 2019 3:39 pm, edited 295 times in total.

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Sat Mar 08, 2014 9:52 pm 
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I hope you mean interesting and potentially bioavailable lithium minerals, or else lepidolite, elbaite and spodumene are going to want to sit down for a long chat. :lol:

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Sun Mar 09, 2014 8:32 am 
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Hi !

Thank you Cascaillou ! This is a very interesting topic ...

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Sun Mar 09, 2014 8:50 am 
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Scarodactyl, indeed that is all a matter of bioavailability.

Thank you Danielle, I spent a lot of time on this writing, and I'm glad I'm not the only one interested in such topic.

Just keep in mind that my article was mostly addressed to collectors, and thus doesn't investigate chronic toxicity issues into much detail as this isn't a concern for collectors, however it is for gemcutters.


Last edited by cascaillou on Sun May 22, 2016 8:34 pm, edited 28 times in total.

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Sun Mar 09, 2014 9:42 am 
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cascaillou wrote:
I spent a lot of time on this writing ...


I believe you Cascaillou ;)
I'm very interested and even fascinated by these issues chemistries, despite my gaps in this field ...
Learning is not by far the the most difficult thing to be done !

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Sun Mar 09, 2014 10:05 pm 
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A company is processing lithium carbonate in metric ton quantities from geothermal water locally near the Salton Sea of southern California. I was at a presentation of the company and I gathered than Mercedes had contracted for current output for batteries. They expect to hire 300 chemists for a new plant to be built if this prototype process works out. They indicated that they will be the #1 source of lithium carbonate.

http://thinkgeoenergy.com/archives/16644


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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Mon Mar 10, 2014 8:13 am 
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that's interesting, I wonder if there could be any naturally occuring zabuyelite in that area


Last edited by cascaillou on Mon Jan 30, 2017 10:34 am, edited 1 time in total.

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 Post subject: Re: An overview of the toxicity in minerals
PostPosted: Wed Mar 12, 2014 2:05 am 
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The speaker said that they use ion exchange columns to extract the lithium carbonate. We asked more questions on the process and then he got a little 'hazy' on their process :) I will ask about the crystals next time.


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 Post subject: Re: AN OVERVIEW OF MINERALS TOXICITY
PostPosted: Mon Oct 21, 2019 2:58 pm 
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The final version of the article (updated November 11, 2019) is now available.


Last edited by cascaillou on Mon Nov 11, 2019 3:39 pm, edited 10 times in total.

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 Post subject: Re: AN OVERVIEW OF MINERALS TOXICITY
PostPosted: Mon Oct 21, 2019 3:06 pm 
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One of the health crazies came to a show a few years back an told a friend of mine she had been told she needed to eat an orange rock to improve her health. She had picked up a piece of orpiment he had on the table and asked if that would be a good one. he carefully told her NO, and to wash her hands.

Really happened. (For those who don't remember, this is Arsenic Sulfide.)


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 Post subject: Re: AN OVERVIEW OF MINERALS TOXICITY
PostPosted: Fri Nov 08, 2019 7:42 pm 
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Ineed, under the paragraph of my article dealing with risk assessment, I had mentioned the risk to young children who often put things in their mouth...but I guess irresponsible behaviours from the 'metaphysical' crowd are now to be considered along with standard baby-proofing concerns. Depressing.


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