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United Cavers Exploration Team

Media, Links Etc. => Videos => Topic started by: Ian A on Sep 25, 2011, 09:02 PM

Title: Cae Coch Sulphur Mine - Deeper Inside
Post by: Ian A on Sep 25, 2011, 09:02 PM
http://www.youtube.com/watch?v=dc4nBtqVy4c
Title: Re: Cae Coch Sulphur Mine - Deeper Inside
Post by: John Oh on Sep 26, 2011, 06:58 PM
Great Video Ian, I can't believe how much light underwater  bulb gave off in the video, shame my camera didn't see as much. Like you Pictures too, especially DSCF2976a.jpg

Good trip, even if it was a bit S***** than I would have liked.

John.
Title: Re: Cae Coch Sulphur Mine - Deeper Inside
Post by: Ian A on Sep 26, 2011, 07:07 PM
[quote="JohnO" post=2573] I can't believe how much light underwater  bulb gave off in the video, shame my camera didn't see as much.
John.[/quote]

You have way too many buttons that's why !

:P

Ian
Title: Re: Cae Coch Sulphur Mine - Deeper Inside
Post by: Vikki Sestan on Sep 27, 2011, 07:44 AM
Great video Ian, it was a shame I couldn't make this trip.
Title: Re: Cae Coch Sulphur Mine - Deeper Inside
Post by: Dave Tyson on Oct 03, 2011, 10:42 PM
Excellent video Ian. I think the fine transparent crystals are not calcite (CaCo3), but rather gypsum (CaSO4) formed by the action of sulphur dioxide from the pyrites acting on calcium rich water. The pale green crystals are ferrous sulphate formed by oxidation of the pyrites.

Dave
(who used to be a chemist!)
Title: Re: Cae Coch Sulphur Mine - Deeper Inside
Post by: Ian A on Oct 03, 2011, 10:53 PM
Thanks Dave ... that's precisely the kind of info and help that is muchly appreciated :)

I did wonder about about the "green" - there is a fabulous display of it in Ystrad Einion and I recognise that as ferrous sulphate (iron (II) sulphate); I just wasn't sure if it was the same :dry:

Muchas Grathias

:)

Ian
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