Very difficult to capture in photos, but this is a solid plate of transparent blue-green fluorite with purple accents that has formed bizarre, ziggurat-shaped crystals on its surface - modifications to the octahedron in the form of what appear almost as steps going up the edges of the octahedrons, with flat terminations. We have tried to photograph this numerous times in different ways, but just can't get good pics. So, this one comes with a guarantee - if you win it and do not like it, we will gladly take it back! 9.8 x 6.2 x 3.9 cm