I am a woodturning artist who has been on a DIY Network TV show! On Youtube, search "Dale Sherman Cool Tools" and there I am! As a maker, I got SICK of what many were charging for crushed opal and ring cores, so I did something about it! This is the EXACT SAME material literally everyone sells (there is currently ONE manufacturer of this material on Earth, Kyocera)...just at a more reasonable price! I do my own castings for pens and other items, so they are unique. I'm very passionate about what I'm doing, so please share in that with me and consider a gift or some material from my store! THANK YOU!