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rust-like patches on shells

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rust-like patches on shells
03-29-2010, 07:02 PM,
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dave r Offline
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rust-like patches on shells
Byne's disease leaves a chalky-white deposit and etches into the shell. Sadly I came across many cases when I curated a collection for my local museum. It also smells of vinegar due to the acid secreted by the fungus. I came across examples that looked like they had been dipped in flour. It attacks eggs too as they are also made of calcium.
It could be something as simple as periostracum still adhering or, as you say, contaminant from storage or just a discoloured shell due to environmental conditions. Hopefully the photos will show us which it is.
Dave  
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Messages In This Thread
rust-like patches on shells - by lulu.shell - 03-28-2010, 05:39 PM
rust-like patches on shells - by dave r - 03-29-2010, 09:10 AM
rust-like patches on shells - by lulu.shell - 03-29-2010, 03:27 PM
rust-like patches on shells - by marlo - 03-29-2010, 05:22 PM
rust-like patches on shells - by dave r - 03-29-2010, 07:02 PM
rust-like patches on shells - by lulu.shell - 04-11-2010, 12:39 PM
rust-like patches on shells - by dave r - 04-11-2010, 02:55 PM
rust-like patches on shells - by paul monfils - 04-11-2010, 03:38 PM
rust-like patches on shells - by lulu.shell - 04-12-2010, 08:26 PM
rust-like patches on shells - by pam - 04-17-2010, 12:13 PM
rust-like patches on shells - by lulu.shell - 04-18-2010, 07:58 PM

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