This specimen at first glance looks like it should be valued at double or triple, and indeed maybe I am pricing it down too much for the few small bits of damage present. Only on close inspection, can you see a few minor bits of edge wear on some crystals. Nevertheless, in the center, it features a stunningly lustrous, doubly-terminated and deeply colored crystal of dioptase measuring a full 2 cm, tip to tip! The lustre, the showiness , the sheer color intensity of the piece scream value, and it perhaps is worth more, but I got it in a deal from an old german collection and can pass it on. Dioptase of this quality and with crystals of this size, generally, is never inexpensive. These stopped coming out by the mid 1980s.

Malachite from Germany is one of those things you hear about, but seldom see for sale in good quality. This is an old specimen from an uncommon locale. It could be trimmed, actually, into a stellar display-quality miniature, with a little work (and probably worth more, too), but I thought i'd offer it big to start with. The cluster of malachite features individual chatoyant blades with brilliant silky lustre, and measures about 4 x 4 x 2.5 cm overall. A rare, and important, display-quality German classic from an Old german collection

Superb, translucent, lathelike crystals of alamosite make the bulk of this specimen, which is a major thumbnail example of the species and, aside from a few freak specimens, is of a pretty good quality as well. The black specks are melanotekite, though there may also be other minerals in association here which I am not identifying. Alamosite in good crystals is one of the more uncommon of Tsumeb rarities, and seldom seen for sale (at any price, but usually very high, when priced). From an old German collection, such pieces are rarely seen on the market today.