Rust oysters

[tomferry]

Very strange this was a completely dry environment with minimal air flow. Notice how the oysters have only attached to the higher supports ? It appears what is inside the steel also matters the lower one has none and has not rusted to the same degree .

 

[ChrisJC]

Until we spotted these new ones, I had been of the opinion that a high humidity was required for then to form. But this location is extremely dry .

Chris.

 

[Mrs Trellis]

Can some one post a picture of this purple stuff ??

 

[Mrs Trellis]

Whilst looking up that pic I came across this:-

Fungi and bacteria naturally cleaning up pollution from former mining activities - Environment: Metals Microbes and Minerals

In a secluded corner of the Mendip Hills can be found a nature reserve with a surprising history of ancient Roman mining, an 1863 lawsuit for environmental pollution, a major cave system beneath the surface and now the focus of 21st century scientific research. Lead mining at Priddy was thought...

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