Silky, light brown, hemispherical mimetite clusters on a matrix of colorless, opaque to transparent calcite rhombs. Individual mimetite balls reach 5 mm across, and are more brown than the pictures on my computer appear. One mimetite is ball is incomplete, otherwise no damage. The amount of mimetite and calcite are nicely balanced.

A group of silky, light yellow-brown mimetite hemispheres, accented with colorless to brown, mostly transparent calcite rhombs, on matrix. The mimetite balls reach 6 mm, and the calcites top out at 4 mm. Minor matrix. A few missing mimetite groups, but this does not significantly detract.

A cluster of off-white, translucent to opaque smithsonite rhombohedra on matrix. The smithsonites are glassy and reach 1.7 cm across. Vugs around the smithsonites contain small, sharp quartz crystals, which are somewhat brown due to inclusions.  Very minor edgewear noted under 10x magnification, otherwise no damage.

Clusters of glassy, translucent, olive-green andradite crystals scattered across the face of a gray matrix. The clusters reach about 5 mm across. A few incomplete clusters, but these do not detract. Sits well for display without a stand.

A cluster of light blue to white barite blades, mostly translucent with some transparency along the edges. The largest individual crystal is 1.7 cm across. No damage.

A rounded calcite lump (hard to call it a crystal), colored gray due to inclusion of microscopic boulangerite. Additional boulangerite 'hairs' are easily visible along the base of the specimen. The snowy coating is a second, thin generation of calcite. Also present at the base is a poorly crystallized mixed sulfide layer (appears to be sphalerite and galena).

A cleft in limonite/goethite matrix hosts clusters of glassy, greenish-yellow adamite crystals. Strong greenish fluorescence under short-wave UV (second picture). A bit contacted and cleaved along one edge (left edge first picture) but otherwise no damage. A fine example for the price.

A gossan matrix with a rich coverage of glassy, yellow-green adamite crystals to 5 mm. The adamites are larger on the front face (shown) and smaller but just about as abundant on the rear face (not shown). Strong fluorescence. Displays as shown without a stand. No damage.

A large, vuggy gossan matrix with a rich coverage of translucent to opaque adamite crystals. Individual adamites reach 5 mm across. Minor calcite. Displays as shown without a stand. Good fluorescence and no damage.

A silvery muscovite matrix hosts two lustrous cassiterite crystals. The main (top) crystal is complex and nearly complete, same for a small contact along one edge, and a little edgewear. The bottom crystal is larger, but incomplete, as the specimen's base has been sawn (although this does make a fine display base). As is common in these pieces, the muscovite is matted down a bit in a few places. Trimming could yield a nice cassiterite thumbnail.

A large chunk of light pastel green fluorite. The specimen is notable not for its crystal structure (only one or two crystal faces are complete or even obvious) but for its icy, glassy transparency.