You'll find a wide variety of gems in this mix! Most pieces are around the size of a nickel & flat, but you'll find many that are smaller & larger too. You may even find some marble shaped nuggets that are about twice the size of a pea. Your package will include several colors as well as black, white & clear (colorless) gems. There are cat-eyes, opaque, translucent, iridized, & non-iridized gems. A little of everything! These are packaged by weight, but you can expect to find about 40-50 pieces in each 6 oz package, depending on size. Hover over the 2nd image to see this product used in a completed project.