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4.0 x 2.7 x 2.6 cm. A UNIQUE and SHOWY 2-crystal cluster of blocky, sharp, black sphalerite crystals from a very small recent Bolivian find at a NEW locality, the Nanitay Mine. The step-growth sphalerites have a magical chatoyant shimmer that the photos catch only a part of. Fascinating crystals and highly regarded. A super sharp, mirror-bright, brass-yellow, pyrite octahedron is hidden on the back and the contacted area shows the colorful and beautiful iridescence of the sphalerite.
4.9 x 4.5 x 3.9 cm. A KILLER Dal'negorsk specimen! Just look at the aesthetics here…a complete, sharp crystal of pastel-pink manganoan calcite perched perfectly on a contrasting base of dark, flashy sphalerite crystals. The calcite is complete all the way around.
4.3 x 3.2 x 1.8 cm. A beautifully balanced combo specimen from Peru, combining sharp, brassy chalcopyrite with stacked cubes of silvery galena and dark, lustrous sphalerite. You can see a galena cube buried right in the middle of the chalcopyrite! Stark contrast of form and color makes this a choice miniature standing out amidst the crowd from these mines.
7.5 x 5 x 5 cm. A cluster of intergrown crystals of purple fluorite from Illinois, with little gemmy sphalerites around the edges. The fluorites measure to 2.6 cm along the edges. They are quite transparent.
8.9 x 8.0 x 4.8 cm. This specimen from Dal’negorsk features an unusually even balance of the clear fluorites the locality is famous for, in association with lustrous sphalerite crystals of around the same size.
7.9 x 5.9 x 4.9 cm. A fascinating and really very aesthetic combo of FOUR Dal’negorsk minerals. On what appears to be a single GIGANTIC compound crystal of sphalerite is a compound crystal of fluorite measuring 3.5 cm across. Beneath this you can see both etched and euhedral faces of galena. And here and there, the gold and purple color is from iridescent chalcopyrite.
4.3 x 3.7 x 3.0 cm. An UNCOMMON and very showy combination specimen from the East Colusa Mine at Butte. Baryte is a widespread, but uncommon gangue mineral at Butte. This excellent and nearly undamaged piece features a "mountain range" of jagged, tabular, translucent and pearlescent baryte crystals jutting upward from matrix covered by needle quartz. The baryte is flanked on both sides by lustrous, olive-green sphalerite crystals, another uncommon occurrence with baryte at Butte. Classic, old-time, uncommon and desirable Butte material from the John Ydren Collection.
6.4 x 4.1 x 2.4 cm. A superb Dal’negorsk sphalerite/quartz combination specimen. Here, the two rounded sphalerite crystals have hundreds of little flashing faces.
7.7 x 4.9 x 2.9 cm. An elongated compound crystal, consisting of tightly intergrown subcrystals, of lustrous, flashy sphalerite, running through the middle of a field of little starbursts of quartz crystals, from Dal’negorsk. A very aesthetic example of Dalnegorsk sphalerite, due to the beautiful setting.
6.5 x 6.0 x 3.5 cm. A fine and lustrous cluster of green to reddish-yellow, twinned sphalerite crystals from Colorado! The two dominating crystals have superb striations and texture. This specimen is from an uncommon locality - the Big Four Mine, Summit County, near Kremmling. Ex. George Elling Collection.
10.5 x 6.7 x 6.0 cm. A large plate from the famous Picher, Oklahoma Field of the Tri-State District. Three, large, to 4.5 cm, hydrozincite-coated gemmy, amber calcite scalenohedrons dramatically project upward, like snow-wreathed mountains from a flat plain of silicified limestone, which is very attractively complimented with smaller coated calcite crystals and gemmy, ruby-jack sphalerite crystals. Ex. George Feist Collection, #2993.
3.1 x 2.9 x 1.9 cm. A fine sphalerite crystal perched atop smaller sphalerites from Naica, Mexico. This complete all-around, jet-black crystal is twinned and is very finely striated. Ex. Dave and Emily Stoudt Collection.
4.8 x 3.8 x 2.8 cm. This specimen features superb quality, sharp, very well defined, lustrous, jet-black crystals of Sphalerite associated with delicate, aesthetic "feathers" of Manganoan Calcite. Ex. Rich Kosnar and George Robertson Collections.
15.6 x 12 x 5 cm. A fine combination piece from the famous Elmwood Mine in Tennessee. The two major Fluorite crystals (up to 2 cm on edge) are the classic purple, and there is good zoning within the crystals, as well. The luster is excellent. Along with the Fluorites, there are super-lustrous ruby-jack Sphalerites up to 2.1 cm, and a thousand sharp 2 mm Dolomite rhombs. Ex. Charlie Key.
8 x 6.4 x 4.2 cm. A sharp and distinctive twinned Chalcopyrite nestled among a forest of varying size Quartz crystals. The Chalocpyrite has a fabulous iridescent luster, and is over 3 cm long. Below the Quartz is more Chalcopyrite, Sphalerite, and Pyrite. Ex. Charlie Key.
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share specimen![Sphalerite, Pyrite from Nanitay Mine, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosí Department, Bolivia [db_pics/mdpics/MD-170559a.jpg]](db_pics/mdpics/MD-170559a.jpg)
![Sphalerite, Pyrite from Nanitay Mine, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosí Department, Bolivia [db_pics/mdpics/MD-170559b.jpg]](db_pics/mdpics/MD-170559b.jpg)
![Calcite (Var: Manganoan Calcite), Sphalerite from Nikolaevskiy Mine, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-171589a.jpg]](db_pics/mdpics/MD-171589a.jpg)
![Chalcopyrite, Sphalerite, Galena from Huaron Mines, Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-171985a.jpg]](db_pics/mdpics/MD-171985a.jpg)
![Fluorite, Sphalerite from Bahama Pod, Sub-Rosiclare Level, Denton mine, Goose Creek Mine Group, Harris Creek Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA [db_pics/mdpics/MD-172006a.jpg]](db_pics/mdpics/MD-172006a.jpg)
![Fluorite, Sphalerite from Nikolaevskiy Mine, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-172345a.jpg]](db_pics/mdpics/MD-172345a.jpg)
![Fluorite, Galena, Chalcopyrite, Sphalerite from Nikolaevskiy Mine, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-172352a.jpg]](db_pics/mdpics/MD-172352a.jpg)
![Baryte, Sphalerite, Quartz from East Colusa Mine, Butte, Butte District, Silver Bow Co., Montana, USA [db_pics/mdpics/MD-172423a.jpg]](db_pics/mdpics/MD-172423a.jpg)
![Sphalerite, Quartz from Nikolaevskiy Mine, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-173452a.jpg]](db_pics/mdpics/MD-173452a.jpg)
![Sphalerite, Quartz from Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-173536a.jpg]](db_pics/mdpics/MD-173536a.jpg)
![Sphalerite from Big Four Mine, Kremmling (Grand Co.), Summit Co., Colorado, USA [db_pics/mdpics/MD-174596a.jpg]](db_pics/mdpics/MD-174596a.jpg)
![Hydrozincite, Calcite, Sphalerite from Picher Field, Tri-State District, Ottawa Co., Oklahoma, USA [db_pics/mdpics/MD-174600a.jpg]](db_pics/mdpics/MD-174600a.jpg)
![Sphalerite from Naica, Mun. de Saucillo, Chihuahua, Mexico [db_pics/mdpics/MD-176370a.jpg]](db_pics/mdpics/MD-176370a.jpg)
![Sphalerite from Camp Bird Mine, Ouray, Sneffels District (Mount Sneffels District), Ouray Co., Colorado, USA [db_pics/mdpics/MD-178935a.jpg]](db_pics/mdpics/MD-178935a.jpg)
![Fluorite, Sphalerite, Dolomite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-180905a.jpg]](db_pics/mdpics/MD-180905a.jpg)
![Chalcopyrite, Quartz, Sphalerite, Pyrite from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-180907a.jpg]](db_pics/mdpics/MD-180907a.jpg)
![Chalcopyrite, Quartz, Sphalerite, Pyrite from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-180907b.jpg]](db_pics/mdpics/MD-180907b.jpg)