Here is a superb fluorite specimen that  features a group of completely transparent, clear as glass, see-through crystals in a pale mint green color that is reminiscent of the glass used to make coke bottles. The crystals are all razor sharp, and the surfaces show growth planes to prove they were not polished. You can look right through the crystals to see the bottom surfaces; they are that clear! The edges of the crystals are super sharp, and there is no distracting damage. thi spiece came from a find in 2011.