San Antonio Mine, Santa Eulalia District,  Chihuahua, Mexico - Lot of smithsonite crystals up to 0.4 cm in size cover the cavities of this rock ! Nice light blue color ! Overall size is 5.5X3x2.5 cm

San Antonio Mine, Santa Eulalia District,  Chihuahua, Mexico - Lot of smithsonite crystals up to 0.4 cm in size cover the cavities of this rock ! Nice light blue color ! Overall size is 5.5c3x2.5 cm

San Antonio Mine, Santa Eulalia District,  Chihuahua, Mexico - Lot of smithsonite crystals up to 0.4 cm in size cover the cavities of this rock ! Nice light blue color ! Overall size is 5x3x1.5 cm

Uchucchacua Mine, Oyon Prov., Peru - Wires of native Silver rising up to 1 cm on matrix. Small but nice specimen ! Overall size is 1.7 x 1.6 x 0.7 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.

UCHUCHACUA MINE, LIMA DEPT., PERU - Bright pink rhodocrosite crystals show up on this specimen. The crystals size is up to 1.1 cm. Overall size is 6x3.5x3 cm.

Uchucchacua Mine, Oyon Province, Lima Department, Peru - A super rhodoscrosite specimen ! This rock hosts a biterminated rhodocrosite crystal of 1.6x1 cm in size ! Great color ! The crystal is gemmy ! Overal size is 2.7x2x2 cm

Uchuchaccua Mine, Oyon, Peru - 3 cm wide exposed portion of a vug with translucent pink Rhodochrosite crystals. Good undamaged crystals to 1 cm in size ! nice termination on the main crystals,  contacts on the smaller crystals. Nice for the locality. Overall size is 6x3.3x2 cm.

Uchuchaccua Mine, Oyon, Peru - 3.5cm wide exposed portion of a vug with translucent pink Rhodochrosite crystals. Good undamaged crystals to 1 cm in size ! There are a lot of crystals here, more than 2 dozens crystals !! These are great Rhodo specimens that are no longer common and currently still a great value. Overall size is 7 x 6 x 5.5 cm. Weight is 380 gr.

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.