> Date: Mon, 24 Oct 2011 08:18:54 +0100
> From: [log in to unmask]
> Subject: Re: Great Onslow Consols
> To: [log in to unmask]
>
> Michael,
>
> I agree with Bernard on this. If the mine's main produce was not tin they
> would not have the dressing plant to deal with it. However the bal maids
> bucking the copper/iron pyrites could produce "chips" of high grade tin ore
> that could be sold without further treatment. Also if the amount of tin
> being mined was small but of high grade it might not be economical to
> install a treatment plant and "chips" might be the solution.
>
> Having said that I have not heard the term used before for a Cornish mine!
>
> Regards,
>
> Iain
>
> -----Original Message-----
> From: mining-history [mailto:[log in to unmask]] On Behalf Of
> Bernard Moore
> Sent: 22 October 2011 13:38
> To: [log in to unmask]
> Subject: Re: Great Onslow Consols
>
> Dear Michael,
>
> These chips could be selected hand spalled ore and not dressed ore (viz.,
> not being crushed, washed or dressed in the usual way). Without looking
> deeper, maybe the products were being sold for further treatment elsewhere
> (unlikely though), and were as high grade as possible to get the best
> value...
> alternatively, if the product was sufficiently pure it might have been sold
> direct to the smelters - the Rlys. records should show the final
> destination? - leaving the balance of 'disseminated ore' to be crushed,
> washed, etc..
>
> Just ideas, and you will probably have considered this anyway.
>
> Regards, Bernard
MichaelIn the same vicinity Blisland Consols, also known as Bodmin Moor Consols, sold what they termed as "tin roughs" which fetched just over half the price of black tin. Ref AKHJRegards Paul Richards
|