Tan prismatic crystals of smithsonite (and botryoidal coatings) sit on a matrix of dodecahedral fluorites that are also included by the smithsonite. Notice the square and circular inclusions of the crystal in the corner in the photos . There is quartz and sphalerite present also.

A pastel green modified octahedron with stepped faces is partially buried by doubly terminated calcite prisms, with some sphalerite, galena and pyrite. Old Naica.

Tiny calcite crystals sit on a group of gemmy and lustrous yellow fluorites with purple zoned edges. Mined in 1994.

Brilliant green bi-pyramidal mint green octahedrons of fluorite on a quartz crystal matrix with some clear calcite prisms.

Purple cubes of fluorite (with yellow zoning) with modified dodecahedral and tetrahexahexagonal faces are sprinkled with calcite, galena and chalcopyrite. From the main ore body mined in 1990.

A gemmy, medium yellow, lustrous single cube of fluorite on a sandstone matrix.

A wonderful pair of deep purple, zoned crystals of fluorite with pearly dolomite and minor sphalerite attached.

Pastel yellow, highly lustrous rhombohedral crystals of calcite on a mound of deep green mottramite. It almost makes you want to display the underside.

A wonderful group of grayish lustrous crystals of smithsonite forming a hollow cast that is lined with galena and tennantite. The late Jim Robison (RIP) wrote an article with Malcolm Southwood on Tsumeb casts.

A specimen of lustrous off-white rhombs in an aesthetic sculptural formation that displays from all sides.