<prompt> By definition pigment stone Contain how much percentage of cholesterol10203060  <response>: Pigment stone is the name used for stones containing 30 cholesterol Classification of gallstones Cholesterol Black pigment Brow pigment Location Gall bladder and bile duct Gall bladder and bile duct Bile ducts Major constituent Cholesterol Bilirubin pigment polymer Calcium bilirubinate Consistency Crystalline with nucleus Hard Soft, Friable Radiopaque 15 60 0 Ref: Bailey and love 27th edition Pgno :1120 