Sharp, elongated crystals to 1.7 cm form two hemispheres, around a central cavity, on this fine specimen that looks like it has a donut hole in the middle. It has unusually transparent crystals, and many are of large size. Excellent for species and locale, this is a great piece for the price range as well (and if you saw 1000 in one place, as I did, you would see how this one stands out pretty dramatically from the crowd). Photos don't do it justice!