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North Essex Hunter
Hi
I have several coral stems around 1-1.5 cm in length, I have seen it mentioned on the main website that these can be bleached. However, there is no mention of whether it should be undertaken using regular household bleach and if so at what dilution and for how long they should be left in the solution.

Any advice is greatly appreciated

Thanks
Lee
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prep01
Hi Lee,  cannot find the reference / article - could you post a link please?
Colin Huller
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North Essex Hunter
https://ukfossils.co.uk/2005/01/24/ramsholt/
See paragraph 5 under the heading Fossils
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prep01
Hello again Lee. I found the sentence you referred to. I personally prefer not to and have not bleached corals, but if this is what you want to do then I would use a 10 - 20 % dilution of thin household bleach (NOT TOILET CLEANER) but this is a guess (I only found 1 ref on a US site) and you will have to experiment with both the dilution / time. Don't forget to wear gloves and wash / soak the fossils thouroughly afterwards.
Colin Huller
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North Essex Hunter
Thanks for the advice, I may just try one piece to see how it turns out
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Gerald Gibson
Hello: 

Why do you want to bleach fossil corals?  This changes how they were found in situ.  Because of so-called global warming, complaints are coming in that corals are being bleached.  So why bleach your coral?  If it is for display purposes, you are changing the natural state of this fossil cnidaria (coelenterata).  Of course, I am a bit of a purest, myself, when it comes to artifacts and fossils.  I don't believe in polishing fossils.  In many cases, I don't even attempt to remove them from rocks.  Many fossil hunters make jewelry out of their finds, too.  I could have made a necklace for my wife from my mosasaur, giant fish, and shark's teeth, but that would, like bleaching your coral, ruin their natural state and purpose in my collections, as remnants of the past ages.

Respectfully yours, Gerald
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North Essex Hunter
Hi Gerald

Thanks for responding.

I fully understand the points you make, my query was driven by reading the suggestion on the visit information page for ramsholt that this was possible and perhaps even desirable.

I have not attempted this process and in all probability taking into account your assertions I am unlikely to do so

Cheers
Lee
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