CAMPO DI SASSO, BIBBONA, LIVORNO, ITALY - Large and heavy specimen mainly composed by sphalerite. This rock hosts several sphalerite crystals up to 1-1.2 cm among quartz crystals and small cubic galenas. There are also some tiny zinchenite acicular crystals. 7x8x4 cm

Gordonsville Mine, Smith Co., Tennessee, USA - Nice violet fluorite cubes of 2 cm on the edge ! Bright and well shaped ! Minor crystals of sphalerite on the back. Overall size is 2.7x2.5x2.2 cm

CAMPO DI SASSO, BIBBONA, LIVORNO, ITALY - Large specimen with several honey sphalerite crystals up to 1 cm nested among 1-1.5 cm quartz crystals. There are also some stibnite crystals to complete the picture of this rock. Overall size is 10x6x5 cm.

BOTTINO MINE, SERAVEZZA, CARRARA, ITALY - Various nicely terminated and undamaged blenda crystal show greatly on a carpet of siderite, calcite and tiny quartz crystals ! The largest crystal is 0.7 cm in size. Overall size is 6.5x3x1.5 cm

Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania - Older specimen from Herja featuring black lustrous cyrstals of sphalerite with a flat back with slight overgrowth of siderite. the sphalerite crystals are up to 2.1 cm on the edge ! Excellent - aesthetic specimen from this well known locality. Very Bright crystals ! Overall size is 6.4 × 5.2 × 1.8 cm.

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.

Sweet Home mine, near Alma, Park County, Colorado, USA - The Sweet Home mine is world famous for its Rhodochrosite specimens. For those who don't know, Richard Kosnar and his father-in-law Dave Bergman mined the Sweet Home for a few years during the late 1970's and managed to collect some excellent specimens. This piece features a predominant, sharp, lustrous, gemmy, rich pinkish-red rhombohedron of Rhodochrosite measuring 1.1 cm across that is perched aesthetically on contrasting black Sphalerite matrxi with minor Pyrite. This is an unusual Rhodo from the Sweet Home as they are not often seen on Sphalerite like this. It would make a great addition to any Colorado suite, a Rhodo collection or a suite of thumbnail. This piece is from one of the early pockets that Rich and Dave opened when they started mining in 1977. Overall size is 2x1.5x1.5 cm. Ex Rob Lavinsky coll.