Knowing what the English manage to do to Welsh pronunciation I wonder if
blinkhorn could be a corruption of Blaencwm or similar (not that I know of
any mine that fits or of any Welsh mine of that date) or it could be a
European location, the German product began being imported in the mid 19th
c. I suspect that wad manganese is fairly widely distributed in small
quantities, I have not heard of any in Warwickshire but Shropshire produced
a little, though not this
early. I look forward to hearing other comments.
Mike Shaw
----- Original Message -----
From: Dave Linton <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 13, 2004 11:16 PM
Subject: [MINING-HISTORY] Manganese Ore and Bleaching
> Dear All
>
> I've been asked the following questions by someone who is
> transcribing an 1815 essay. Any suggestions?
>
> >In 1840 Sykes' bleachworks in Stockport were using "Warwick
> >manganese from Blinkhorn grinding, 1s. 6d." What is 'Blinkhorn'?
> >I've searched but turned up nothing. I assume it is (was) a place
> >name - but is it associated with the 'grinding' part and not the
> >'Warwickshire' part? Were there Mn mines in Warwickshire at that
> >time?
> >
> >In 1843 they were buying "Devonshire manganese and Warwickshire
> >manganese." Was Warwickshire an important source of manganese?
> >
> >The essayist states that when poor manganese ores were used they
> >needed more sulphuric acid to generate less chlorine (from the
> >salt). I would have expected LESS acid to be needed but perhaps if
> >the ore was of low Mn content it might be high in carbonate. This
> >would also react with acid and so the operative would find it
> >necessary to use more acid. Did poor Mn ores contain a lot of
> >carbonate (carbonate of which metal?)?
>
> Dave
> --
> Dave Linton
>
> Tel: (01341) 280901 (UK) +44 1341 280901 (international)
> Fax: 0870 124 9761 (UK)
> http://www.hendrecoed.org.uk/
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