Huanggang Mine, Chifeng, Inner Mongolia, China - Nice cluster of genthelvite crystals on magnetite ! There are almost a dozen crystals of genthelvite up to the size of 0.5 cm on the edge ! Very nice specimen. Overall size is 1.9 x 1.4 x 1.2 cm

Huanggang Mine, Chifeng, Inner Mongolia, China - Nice cluster of genthelvite crystals. There are half a dozen crystals all combined and mixed all together on a small matrix. Very nice thumbnail ! Overall size is 1.1 x 1.1 x 0.9 cm

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 a great cluster of millimetric crystals well visible on the edge of an open cavity. Overall size is 4x2.5x1.5 cm

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 1.4 cm on the edge. Minimal natural etching on, as typical for this species. Overall size is  1.5x1.4x1 cm

Rubtsovskiy mine, Altai, Russia - 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