This is a relatively large, twinned crystal of chryoberyl, of incredibly sharp form! Most chrysoberyls twin as sixlings and thus have multiple apparent terminations that, to me, distract the eye. This specimen, however, exhibits another form entirely, with the "ingrown" twinning resulting in a sharp crystal form without the usual flanges, to me much more appealing and symmetrical. It has high luster, and better transparency in person than reflected here: really quite translucent overall. Also, it has a beautiful golden-cognac color that GLOWS when backlit a bit more than we did for the photos. You can get the idea, I think. True, there are some small dings on the termination, but considering the rarity, size, and color, they become trivial in context.The piece displays phenomenally, on a custom base. I obtained this specimen in exchange from the noted gem crystal collection of Gene Meieran.