An intergrown group of mostly opaque, light blue celestine crystals. Individual crystals reach about 7 mm, and most are not terminated. Scattered about on the celestine crystals are opaque, white calcite spheres, which reach about 2 mm diameter. (Looks to me a bit like mold on the celestine.) The matrix is an incomplete, deep purple fluorite crystal intergrown with dark amber brown sphalerite. A good locality association specimen.

Tufts of opaque strontiantite crystals on a bed of colorless calcite crystals, all on matrix. The strontianite tufts reach about 2.5 cm across, and fluoresce white under shortwave UV (second picture). Typical of these species at this locality. No damage.

A cluster of golden-brown, mostly transparent, tabular barite crystals, from the classic Peruvian barite locality. The largest individual crystal measures 2.4 cm along the edge. A few tiny bruises and chips are noted under magnification along the edges, but these do not detract.

Translucent to opaque, complex, brown sphalerite crystal clusters on matrix. Accompanied by bright galena cubes (to about 7 mm) and a scattered, light brown, opaque calcite crust. Underneath lies a carpet of tiny colorless quartz crystals.

Colorless, transparent to opaque augelite crystals accented with scattered pyrite, all on a nearly flat matrix. The largest augelite crystals exceed 7 mm, and the pyrites (which favor an octahedral crystal habit) reach 4 mm. No damage.

A pair of parallel, deep green tourmaline crystals, sharply terminated. They appear unremarkable until backlight (second picture), when a beautiful color-zoned cap appears.

A rich, sparkly  crust of small but deep cranberry-red roselite-wendwilsonite crystals on matrix. Roselite (the cobalt-rich end member of the series) and wendwilsonite (the magnesium-rich end member of the series) cannot be distinguished visually. A few contact points, but no damage.

A calcite scalohedron or point, with a deep red zone sandwiched between a colorless core and colorless rind. The termination is pristine. About half of the crystal is dusted with a second generation of tiny, gray calcite crystals. Sits well for display as shown without a stand. No damage.

A terminated, deep green tourmaline crystal on an opaque albite matrix. When strongly lit from above the tourmaline shows a sharply-defined transition to a 1 mm thick, transparent, light green zone. This sharp transition and lightly-colored zone is a hallmark of Stak Nala tourmalines. Small chipping along the termination edge, but otherwise no damage.

A dark green to black, transparent to opaque tourmaline with an angled, pinkish termination.

A cluster of translucent to opaque sphalerite crystals with a somewhat resinous luster hosts numerous golden chalcopyrite tetrahedra. Individual sphalerite crystals reach 3.2 cm across, and the chalcopyrites reach 4 mm. Scattered, unimportant edgewear is noted under magnification, but otherwise the specimen is free of damage.