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Ah yes, a bonded Coticule/BBW. Very nice. You'll have fun with that.

Chris L

We can more or less confirm it's Belgian Blue Whetstone backed. Now......

Does the BBW have a well defined separation from the coticule layer or obvious evidence of being bonded to the coticule...

Red specks would indicate BBW. Does the tiger eye or figuring look anything like this?
37194

37195

37196

37197

That's the BBW side of a coticule mined somewhere between 100-150 years...

Beautiful stone and a great find. Enjoy it! Hmmmm....I've never tried lather on my cotis. I'm not interested in trying oil, but maybe lather.......

Chris L