Brilliant sharp striated cubic crystals of pyrite to 1.8 cm on edge across the top of this lustrous black sphalerite crystal matrix with quartz. The sphalerite crystals measure to 1.2 cm in size. This is in very good condition with only minimal micro-chipping to some of the quartz crystals at the far lower right side of the piece. Overall size is 6.0 x 5.0 x 2.0 cm. Ex D. Weinrich collection.

Viloco Mine, Loayza Province, La Paz  Department, Bolivia - Lustrous black large crystals of cassiterite covering the top of a 3.3 x 2.5 x 2.0 cm matrix. Micro-chipping present but very minimal, in good condition as seen. Nice example with large lustrous crystals for the species.

San Antonio Mine, Santa Eulalia District,  Chihuahua, Mexico - A slightly translucent bluish green double terminated undamaged crystal of vivianite 1.0 cm in length perched nicely upon this 3.5 x 2.0 x 1.5 cm matrix. Ex Chris & Agatha Galas collection, Ex Dan Weinrich collection.

Sapo mine, Ferruginha, Minas Gerais, Brazil - Tabular mostly gemmy lustrous crystal of fluorapatite 0.9 cm across on an albite crystal matrix. In very good condition. Size: 5.5 x 4.5 x 4.0 cm

Mapimi, Durango. Mexico - Nice green adamite crystals on matrix together with calcite crystals. The adamites are up 0.5 cm on the edge. Bright colors ! Showy speciemen of 4.5x4x3 cm

Mundo Nuevo, Pasto Bueno District, Pallasca Prov., Ancash Depart., Peru - Nice cluster of terminated quartz crystals up to the size of 5 cm ! There are various hubnerite crystals 0f 0.3-0.5 cm located at the base of the quartzes. Very nice specimen of 5x2.2x2 cm in size. Ex G. Tribbey Collection

Eruption mine,Los Lamentos, Chihuahua, Mexico - Nice orange wulfenite crystals on matrix. The color is bright orange and the main crystal is 1x0.8x0.8 cm in size. Overall size is 3.5x3x2.5 cm

Ibitiara, Bahia, Brazil - parkling crystals of hematite throughout this crystallized quartz matrix, the quartz with inclusions and scattering's of yellowish rutile. Measures 6.5 x 4.0 x 2.0 cm.

Huanuni mine, Dalence Province, Potosi  Department, Bolivia - Deep blue translucent thin prismatic crystal grouping of vivianite measuring 4.0 x 1.5 x 0.5 cm. Ex Chris & Agatha Galas collection.

Cerro de Mercado, Durango, Mexico - A bright yellow single fluorapatite crystal sands atop a small matrix. The crystal shows good form and a uniform soft yellow/green colour and the size is 1 cm. Very nice crystal !Overall size is 2x1.9x1.2 cm