Stout butterscotch crystals of wulfenite sit on a matrix of clear calcite with some minor mimetite on the rear.

Spherical aggregates of white xonotlite crystals are intermixed with tan acicular crystals of bultfonteinite and a single calcite prism. The yellow you see is minor jouravskite.

Lustrous, medium green crystals of zincolivenite on a limonite matrix. Old label from the Comptoir Central Historie Naturelle in Paris.

A group of metallic acicular crystals of zinkenite in a compact bundle.