A visually stunning large specimen with classic old patina to it, and sculptural form. You can see how the huge spinel-twinned crystals shoot off in several directins and act as host for some very complex combinatorial forms of copper crystallization resulting in so-called "arrowheads" crystals that have always been rare and desirable to collectors (I think these are tetrahex modified by other forms?). The bright patina, combined with complex 3-dimensional geometry, really makes it stand out. Comes with custom lucite display base. Front and back are shown...actually its good from either side!