06-24-2016, 10:00 PM
Bone has the MATERIAL_ORGANIC flag, by default you can't do anything with them, you'd have to make an alloy with it, but since you can't put organic material in the smelter or auto-loom (at least, I don't think you can), you can't combine it with anything. Blob you can use because it has the MATERIAL_CRYSTAL and MATERIAL_CLOTH flags as well.