We also use a 100mm macro lens to capture as much detail as possible. Normally we would finish these types of rubs off, but have decided to sell them as is to give you a chance to polish of a top quality piece. Most of the hard work is done and rough has been processed to bring down to this size and expose colour and pattern. All that is remaining is final shaping and polishing.Please note : pictures and video have been taken wet, this is to give you an idea of what piece would look like once finished. Dimensions (mm)30 x 13 x 7mm. This item is made of opal.