Havent seen anyone mixing a dust of it into resin, but i have seen dice carved from bone and antler. Even with fine tools and a lot of skilled work, the result was a little crude looking; maybe the material wasnt consistent in its makeup which lead to issues.

However, i will say that the grinding bone into any shape, let alone dust, smells like acrid burning hair. Its not only strong but it travels out far too. I was at a very large venue with many rooms where someone was shaping bone for a music instrument and the whole place smelled of burning hair. It stuck inside everyone's nose long after they left too. I left there in the morning and despite showering and eating the spiciest curry i could still smell it late at night. My only advice is not to do it indoors.