One kilo (2.2 lbs) of dried peyote buttons may yield between 10 and 60 grams of pure white needle crystals of mescaline depending on the potency of the plants used. On average the yield is about 20 grams. The usual underground price of a kilo of dried peyote ranges between $125 and $250 (25 to 50 cents per button). From indians in the southwestern USA the price is closer to $50 (10 cents per button). The street price for a gram of pure mescaline is $20 to $30 - if one is lucky enough to find it. One can obtain from a kilo of dried peyote $200 to $1200 worth of mescaline. If San Pedro is employed on may anticipate a yield of 3 to 12 grams of mescaline per kilo of dried cactus. One can legally purchase a kilo of dried San Pedro for $5 to $10 and from it extract $60 to $250 worth of pure mescaline.