These exquisite Chino coppers were found in just one small area of the pit, in a lucky find, around 2006, within a single elongated vein. Although several hundreds of smaller crystals were recovered, only a relative handful of perfect, doubly-terminated coppers of this large size were recovered. This piece is particularly sharp, and shows the characteristic twinning flanges flaring off around the side of the main axis, which itself is an elongated spinel-twinned copper crystal. A spectacular piece that comes with a custom engraved acrylic base. This piece displays exceptionally well and comes with a custom acrylic base. Specimens like this routinely sold for $2500-5000 range, when fresh. This is one that we "lost" in our warehouse, and it has been here ever since.