Confidence votes 18. For the white through orange, it takes 4 or 5 wins. For the green through black, it takes about ten wins. I have heard in the end when you earn your black belt, the total wins is 88.
Sulfur is found in meteorites. R.W. Wood suggests that the dark area near the crater Aristarchus is a sulfur deposit. Sulfur occurs native in the vicinity of volcanos and hot springs. It is widely distributed in nature as iron pyrites, galena, sphalerite, cinnabar, stibnite, gypsum, epsom salts, celestite, barite, etc.
Chemist for uranium nuclear fuels. Sulfur is found in nature as pure element (S) - solid or in colloidal solutions, as gas (H2S) and is also present in many minerals.