This is a splendid Smoky Quartz Elestial crystal from Brazil.  I had difficulty capturing the clarity of this crystal with the camera, but it is quite transparent and you can easily see right into it.  This crystal has great color and shine.  There are incredible etchings on both sides of this crystal, most of them are triangular patterns.  There are several good pictures of some of these etchings on the front side.  On the back side you will see some clear quartz crystals attached, including a rectangular tabby stacked on top of another tabular crystal.  There are two other clear quartz crystals nearby, one of which is terminated.  This is a beautiful Elestial ... one of my favorites.