White Mineral Polishing Powder Great For Removing Scratches From Watch Crystals. This is a new bag of white mineral polishing powder. Great for removing scratches from watch crystals. It weighs approximately 300 grams (10.6 oz). We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.