Made to a customers specifications, all materials flow with the design idea. To have something that is linked in some regards to the Dinosaur Bone. The is accomplished by using the meteorite, Titanium, and Onyx. I am especially pleased with the finish on the blade. It is a 9000 grit hand rubbed satin. 9000 grit equals 0.5 micron. For reference, a human hair is 40 micron. The blade and spacer have been fully file worked and diamond textured. I turned the thumb stud, grooved and file worked it before inlaying a Black Onyx stone.