Dioptase crystals to 1cm with larger, translucent Calcite crytals to 1.5cm Some damage present but in overall good condition. Typical Tsumeb Dioptase/Calcite specimens have white, rhombic Calcite. This one is a little different with translucent to transparent scalenohedral Calcite crystals.

White Anglesite crystals to 1.5cm on a bit of blue, metallic matrix (Germanite?). There are also what appear to be small Wulfenite crystals in the matrix (Chillagite?). Some chipping but in overall good condition.

Wulfenite and Mimetite crystals scattered across a heavy, metallic sulfide matrix. Some green mineralization adds color contrast.  Great study specimen with hundreds of crystals.

Bright and transparent Quartz crystal with inclusions of Brookite crystals. This is an excellent example with long Brookite crystals, some of which are fully included in the Quartz and others that partially extend out of the Quartz. The central Brookite extends from the base of the Quartz right up the middle to the very tip of the Quartz! The Quartz is also mostly recrystallized on the base. Great crystal!!

Gemmy single Spessartine crystal from recents finds in Nigeria. The crystal is complete and transparent with a well saturated red/orange color. Most in the lot had contacts, this one is good all around.

Olive green color Prehnite crystals with sharp radial clusters overall. A small amount of silver-gray Graphite can be seen mainly on the bottom. An excellent quality specimen with good luster and very translucent. No major damage and only minimal chipping here and there. Though darker in color due to Graphite inclusions, this is an excellent specimen with large, well defined crystals that I value at $300.