Re: gauge railway workshop to yard

Leon Fisk <lfiskgr@gmail.invalid> writes:

On Mon, 10 Jun 2024 08:37:50 +0100
Richard Smith <null@void.com> wrote:
>
<snip>

This is driven by my wanting to actually experience the realities of
mineral processing.
Start with a heap of "rocks" and end up with some metallic minerals.
I'm getting better at spotting things.

>
A very different "mining" method you may find of interest :)
>
https://www.sciencefriday.com/segments/phytomining-harvesting-metal-through-plants/

Makes sense to develop this.
Heard of plants which absorb so much arsenic that logic says try to
work-out what advantage they could be getting.

If I recall, in history - eg. Roman times? - substances like iodine (?)
were obtained from gathering, drying and burning seaweed - so in-essence
"phytomining"

Here in Cornwall there area areas of mine tailings where nothing has
grown in more than 150 years

http://www.weldsmith.co.uk/tech/minerals/240405_aspr/240403_ode_arsenopyrite.html
"Ode to Arsenopyrite"

Best wishes,
Rich S