Dallas Gem Mine, Diablo Range, San Benito Co., California, USA - A single terminated lustrous black neptunite crystal measuring 2.7 cm in length set on the side of matrix. No damage. Overall size: 3.5 x 2.5 x 2.5 cm.  Ex Ralph Merrill collection

Le Cetine mine, Siena, Italy - A rare mineral from the type locality. Onoratoite derves from stibnite oxidation and shows as groups of white acicular crystals. This rock has several clusters of millimetric crystals nicely dispersed on an open cavity. Overall size is 3x3x2.2 cm

Rubtsovskiy mine, Altai, Russia - Bright  terminated cuprite crystals up to 2 cm on the edge. Minimal natural etching on, as typical for this species. Overall size is 2.4x2.2x1.8 cm

Rubtsovskiy mine, Altai, Russia - Bright  terminated cuprite crystals up to 1.8 cm on the edge. Minimal natural etching on, as typical for this species. Overall size is 2x2x1.8 cm

Rubtsovskiy mine, Altai, Russia - Bright  terminated cuprite crystals up to 1.4 cm on the edge. Minimal natural etching on, as typical for this species. Overall size is  1.5x1.4x1 cm

Rubtsovskiy mine, Altai, Russia - Cluster of bright  terminated cuprite crystals up to 1.5 cm on the edge. There are half a dozen crystals. Minimal natural etching on, as typical for this species. Overall size is 2x 1.6x1.6 cm

Rubtsovskiy mine, Altai, Russia - Clusterr of bright  terminated cuprite crystals up to 1-1.2 cm on the edge. I count more than a dozen crystals !  Overall size is 3x2.5x2 cm

Erupcion Mine, Mun. de Ahumada, Chihuahua, Mexico - Light carmel colored blocky wulfenite crystals to 0.4 cm in size rich on a 3.5 x 3.2 x 1.5 cm matrix with minor calcite. In great condition as seen. Ref: The Mineralogical Record, 34(6),pp:5-31. Ex Gene Tribbey collection.