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Freelance Work at Height and Lifting Instructor.
There are currently three active cavers working with SpanSet as Freelance Work at Height and Lifting Instructors – are you interested in joining them?
Due to the continued expansion of our busy Training Department, we are always looking for freelance Instructors to join our team delivering training at our head office in Middlewich and at clients sites throughout the UK.
Snottites need sulphur AFAIK; I've only ever seen them in soughs driven through shale here in the Peak. So, unless there's something feeding sulphite ions into the groundwater I wouldn't expect to see them.
Thanks AR; understood - and you confirmed my thoughts. Apparently snottites are quite acidic; that's why I was wondering whether they'd be expected at all in the caves around Ingleton. Guess a simple test with pH paper might confirm or otherwise.
Again not caves but in the mines at Nenthead, sulphide minerals in alternating limestone and shale. Seen growing on roof arching but unclear if limestone or sandstone blocks (many of the arched levels were lined with specially quarried flags, but not all...
I would be surprised to hear of them in the Three Peaks area in natural caves (but not elsewhere in the world)
Not sure I could formally identify a snottite if I saw one but I?ve definitely seen ?rubbery? formations (stal and curtains) in Dentdale in the low beddings in Mill Beck Cave. We assumed these were slurry seepage from the fields above rather than classic mineral based formations. Deeply unpleasant!
Thanks - I think the last time I was in the Burtersett Mines was before snottites were identified / named!
What I do remember though was small almost transparent (water soluble) crystals with a greenish tinge emerging from the shales in there. I remember at the time deciding they were likely to be iron sulphate. If that's right - and there's sulphur minerals knocking about, that'd be compatible with snottite formation.
Thanks - I think the last time I was in the Burtersett Mines was before snottites were identified / named!
What I do remember though was small almost transparent (water soluble) crystals with a greenish tinge emerging from the shales in there. I remember at the time deciding they were likely to be iron sulphate. If that's right - and there's sulphur minerals knocking about, that'd be compatible with snottite formation.
John - I did a video last time I was in those mines and I swear snotties were there for sure. It's on my site somewhere, will drop you an e-mither about it.