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 occurs naturally as the element, often in volcanic areas. This has traditionally been a major source for human use. It is also widely found in many minerals including iron pyrites, galena, gypsum and Epsom salts.
Sulfur is a native element as well as a mineral. Its crystal form consists of transparent to translucent crystals that have an unmistakable deep yellow color. In its massive form, the color is usually a pale yellow, but may sometimes be red or gray if impurities are present. Moisture in the air reacts with sulfur to release small amounts of hydrogen sulfide (H2S), giving sulfur a distinctive odor similar to rotten eggs.