No, I can't think of an answer to your question. The only known thing of elf-hair is that elves (just as men) have different colors too.
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'You?' cried Frodo.
'Yes, I, Gandalf the Grey,' said the wizard solemnly. 'There are many powers in the world, for good or for evil. Some are greater than I am. Against some I have not yet been measured. But my time is coming.'
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