Gold

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> On Jul 6, 2018, at 7:14 AM, Matthias Mansfeld <[log in to unmask]> wrote:
> 
>> On 6 Jul 2018 at 6:08, David Hillman wrote:
>> 
>> The Question:
>> This element must be stored in mineral oil because if it combines with
>> water, it will explode if exposed to an ignition source. This element
>> is found in monazite sand.This element is used as a glass dye. Early
>> glass using this element as a dye made in the 1930s have a more
>> reddish or orange tinge than modern versions which are more cleanly
>> purple, due to the difficulties in removing the last trace elements
>> when manufacturing relied upon fractional crystallization technology.
>> The  drive electric motors of each Toyota Prius require one kilogram
>> (2.2 pounds) of this element per vehicle. The use of this element in a
>> commercial product has led to at least 1,700 emergency room visits for
>> gastrointestinal tract problems. Which element is being described?
> 
> Neodym
> 
> Regards
> Matthias
> --
> Matthias Mansfeld Elektronik * Printed Circuit Board Design and 
> Assembly
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