eBay

Try selling it. I see Torroise shell needles for sale. They will let you know if they think it inappropriate.

If it smells of hair it is genuine and the motives suggest to me a voyage from Holland by ship and sites seen on the way, i.e.; shark. Good luck!

Hi I would like to suggest asking someone who collects rocks, in person if possible. Even a jeweller might answer the question. You could also send a picture to an auction house; but to me, it would be almost impossible without seeing it in hand. Goo...

Hi I would like to suggest asking someone who collects rocks, in person if possible. Even a jeweller might answer the question. You could also send a picture to an auction house; but to me, it would be almost impossible without seeing it in hand. Goo...

I beleive it's a mexican fire opal and the setting is still made today.