Just a thought - could the source of gypsum coming up the Seven be from the
Somerset coast around Watchet where it outcrops on the beach
Andy B
> -----Original Message-----
> From: D.R.Poyner [SMTP:[log in to unmask]]
> Sent: 28 January 2003 15:48
> To: [log in to unmask]
> Subject: Re: Manganese and Sulphur.
>
> The alleged source of the mystery mineral was along the Dowles
> valley, which is in the Wyre Forest Coalfield. Even sulphur coal is a
> bit optimistic around here, as it is mainly Etruria Marl; however, a few
> patches of coal could probably be found. The Geological Survey
> make no mention of gypsum there .
>
> I suspect Michael is right in that most of the raw materials came up
> the Severn.
>
>
> David
>
> On 28 Jan 2003 at 12:31, Rob Ixer wrote:
>
> > Re the Bewdley sulphuric acid in the Severn valley my guess would be
> that a
> > sulphate was the original feedstuff-namely gypsum/anhydrite, rather than
> > pyrite.
> > A geolocal map would help decide.
> > Rob Ixer
> >
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