Cleaning Bird Eggs
My 5-year-old daughter found a broken Robin's egg. She
wants to clean it and put it in her keepsake "treasure box". Is there a
good way to clean it and preserve it without further breakage? Thank you.
These shells are so thin that cleaning is impractical and breakage is
highly probable. Because it is made of calcium carbonate, soaking it will
cause it to dissolve in most solvents and including water. I would
suggest photographing it for her treasure box.
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Update: June 2012