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12.5 x 10.5 x 5.8 cm. An excellent cabinet fluorite specimen from the famed Minerva #1 Mine of Southern Illinois. This lustrous, translucent, color-zoned crystal has the classic yellow core with vivid bands of blue and purple. The backlit photo highlights the distinctive and gorgeous color zoning. The frosted, striking stepped faces (especially the front) are sprinkled with sparkly chalcopyrite microcrystals. This piece is a near floater, with only a couple of points of attachment and the back holds a real bonus. Gemmy, colorless to light amber, calcite rhombs cover the back and one edge.
5.5 x 4.5 x 3.5 cm. A very old, very rare calcite crystal with sparkly, powder-blue copper mineral inclusions from the Mid-Continent Mine of Kansas. The sharply terminated, lustrous, translucent, amber crystal scalenohedron aesthetically rests on sphalerite with chalcopyrite. The copper mineralization, as malachite or chrysocolla, formed as the chalcopyrite weathered and as the calcite crystal was growing. This is a unique, rare old-time specimen, certainly from prior to World War I. Ex. Mullane Collection.
6.5 x 4.5 x 4 cm. Almost certainly, this unusual matrix specimen of garnet is almandine. I am not exactly sure which subspecies, though, as I have never seen one clearly identified from this old locale (pieces from here date back to the mid 1800s). There is one, large 2.4 cm-across, lustrous, reddish-brown crystal which exhibits spectacular red internal highlights. It is perched aesthetically atop the matrix. Complete-all-around, and showing excellent crystallography, I suspect this is a major crystal for the locale. The matrix is a heavy chalcopyrite ore - highly unusual matrix for garnets. In fact, I cannot recall seeing the like from anywhere else. From the collection of Dr. James Gebel, who purchased it out of an old collection.
9.5 x 6.7 x 4.0 cm. A classic golden scalenohedral Calcite crystal with sharp, lustrous faces and great form. The crystal sits on a matrix of white/grey Dolomite with Pyrite and iridescent Chalcopyrite. Not nearly as common on the market as they once were, and easily some of the most well known American Calcite specimens extant.
9.5 x 4.9 x 4.9 cm. Beautifully iridescent, brassy, sharp and lustrous chalcopyrite crystals to 1.5 cm are aesthetically scattered amongst a forest of quartz needles on the sculptural, vuggy rhyolite matrix that is shaped like a shoe. This fine piece is from the very uncommon Empire Zinc Mine of New Mexico. Undoubtedly old material, but no proof. Ex. Mullane Collection.
6.6 x 5.9 x 5.2 cm. Sharp, golden, 2-cm chalcopyrite crystals in a spray perched atop a knoll of quartz. This is old classic material, from the heyday of the Herodsfoot Mine.
10 x 8 x 4 cm. Dreislar is one of the world's classic localities for baryte. It occurs as a snowy white, bladed material (as with this piece). However, this one is much more 3-dimensional and attractive than most such specimens I have seen, and has rich speckling of chalcopyrite crystals which really offset and highlight the snowy white color of the baryte. The piece is almost pristine.
6 x 5 x 3 cm. A truly stereotypical example of the classic "blister ore" that miners loved even more than the finer crystallized minerals of the day. Why not? It’s really interesting and attractive. However, because they were not valued so highly at the time by more prominent collectors, few have been preserved in good shape. This is excellent for the size because of its lustre, color, 3-dimensionality, and aesthetic quality. Ex. Dr. Edward David Collection.
2.2 x 1.9 x 1.5 cm. This is a thumbnail size cluster of brassy, lustrous, sphenoidal crystals of chalcopyrite, to 1.5 cm across. Nearly pristine. Ex. Richard Hauck Collection.
A very uncommon, strikingly beautiful specimen featuring two sharp and finely formed chalcopyrite crystals (to 2 cm) coated by bornite, on a contrasting matrix of crystalline epidote. This specimen absolutely leapt out from amongst the offerings of the Cincinnati show dealer from whom I bought it earlier this year. 5.3 x 5.3 x 3.5 cm
11.0 x 9.0 x 8.5 cm. Splendent, sharp, discrete, metallic-gray galena octahedrons to 3.6 cm are aesthetically perched on the mounded cabinet limestone matrix covered with lustrous gray calcite rhombs and very sparkly, brassy chalcopyrite crystals on this outstanding specimen from the Sweetwater Mine of Missouri. These are really superb, pristine galena octahedrons and can be viewed from many different angles. For larger, isolated galena octahedrons, this is one of the finest Viburnum Trend specimens that I have seen. Ex. George Feist Collection #2844.
14.0 x 11.0 x 10.0 cm. An impressive cabinet combination specimen from the Borieva Mine at Madan. One end of this dramatic piece is highlighted by iridescent, golden, magenta and peacock-blue chalcopyrite crystals to 2.5 cm. Sharp cuboctahedral galena crystals to 2.8 cm, with fine gunmetal lustre are aesthetically nested in sprays of quartz crystals to over 3.0 cm. Classic Madan material.
8.4 x 5.4 x 3.8 cm. Sharp, glassy and lustrous, light pastel-green datolite crystals to 1.5 cm cover the matrix on this excellent specimen from Charcas, Mexico. The iridescent golden and bronzy chalcopyrite crystals are a very nice accent. The datolite crystals look like gemstones on this very nearly pristine piece from the Dave Stoudt Collection. Old material.
4.7 x 3.8 x 2.9 cm. A classic and desirable Creede Sphalerite specimen. The crystals themselves are very gemmy with the typical honey and green color that one is accustomed to seeing from this mine, and they are associated with minor Chalcopyrite and Galena. The largest Sphalerite crystal measures 1.3 cm across. You do not see these specimens any more, and they are simply some of the most classic pieces from any ore body in Colorado. From the Emerious vein. Ex. Richard A. Kosnar Collection.
A very aesthetic specimen of lightly iridescent chalcopyrite crystals and lustrous and gemmy sphalerite crystals set on a curved-at-the-top crust of milky-white quartz crystal needles. The large, 1.3 cm chalcopyrite crystal perched on the top really adds to the attractiveness of this Commodore Mine piece. 6.0 x 4.2 x 2.3 cm
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share specimen![Fluorite, Calcite, Chalcopyrite from Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA [db_pics/mdpics/MD-260129a.jpg]](db_pics/mdpics/MD-260129a.jpg)
![Fluorite, Calcite, Chalcopyrite from Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA [db_pics/mdpics/MD-260129b.jpg]](db_pics/mdpics/MD-260129b.jpg)
![Calcite, Sphalerite, Chalcopyrite from Mid-Continent Mine, Treece, Picher Field, Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-261472a.jpg]](db_pics/mdpics/MD-261472a.jpg)
![Garnet Group, Chalcopyrite from Burra Burra Mine(Tennessee Copper Company; Copperhill Operations), Ducktown District, Polk Co., Tennessee, USA [db_pics/mdpics/MD-261503a.jpg]](db_pics/mdpics/MD-261503a.jpg)
![Garnet Group, Chalcopyrite from Burra Burra Mine(Tennessee Copper Company; Copperhill Operations), Ducktown District, Polk Co., Tennessee, USA [db_pics/mdpics/MD-261503b.jpg]](db_pics/mdpics/MD-261503b.jpg)
![Calcite, Dolomite, Pyrite, Chalcopyrite from Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-261617a.jpg]](db_pics/mdpics/MD-261617a.jpg)
![Chalcopyrite, Quartz from U. S. Tunnel, Empire Zinc Mine, Hanover-Fierro District, Grant Co., New Mexico, USA [db_pics/mdpics/MD-261772a.jpg]](db_pics/mdpics/MD-261772a.jpg)
![Chalcopyrite, Quartz from U. S. Tunnel, Empire Zinc Mine, Hanover-Fierro District, Grant Co., New Mexico, USA [db_pics/mdpics/MD-261772b.jpg]](db_pics/mdpics/MD-261772b.jpg)
![Chalcopyrite, Quartz from Herodsfoot Mine (North Herodsfoot Mine), Lanreath, Menheniot Area, Liskeard District, Cornwall, England, UK [db_pics/mdpics/MD-263151a.jpg]](db_pics/mdpics/MD-263151a.jpg)
![Chalcopyrite, Baryte from Dreislar Mine, Dreislar, Winterberg, Sauerland, North Rhine-Westphalia, Germany [db_pics/mdpics/MD-263154a.jpg]](db_pics/mdpics/MD-263154a.jpg)
![Chalcopyrite (Var: Blister Copper) from Cook's Kitchen Mine, Carn Brea and Tincroft United Mine, Carn Brea area, Camborne - Redruth - St Day District, Cornwall, England, UK [db_pics/mdpics/MD-263155a.jpg]](db_pics/mdpics/MD-263155a.jpg)
![Chalcopyrite from San Martín Mine, San Martín, Mun. de Sombrerete, Zacatecas, Mexico [db_pics/mdpics/MD-263157a.jpg]](db_pics/mdpics/MD-263157a.jpg)
![Bornite, Chalcopyrite, Epidote from Dashkesan (Dashkezan) Co-Fe deposit, Dashkesan, Daşkəsən (Daskasan; Dashkyasan) District, Azerbaijan [db_pics/mdpics/MD-26421a.jpg]](db_pics/mdpics/MD-26421a.jpg)
![Galena, Chalcopyrite from Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-266152a.jpg]](db_pics/mdpics/MD-266152a.jpg)
![Galena, Chalcopyrite, Quartz from Borieva mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria [db_pics/mdpics/MD-266275a.jpg]](db_pics/mdpics/MD-266275a.jpg)
![Datolite, Chalcopyrite from Charcas, Mun. de Charcas, San Luis Potosí, Mexico [db_pics/mdpics/MD-266284a.jpg]](db_pics/mdpics/MD-266284a.jpg)
![Sphalerite, Chalcopyrite, Galena from Emperius Mine (Emperious Mining Company; Del Monte Mining Company; Chance Mining Co; Bachelor Mine; Amethyst Mine; Commodore Mining Company; Last Chance and Pittsburg Mine Co; New [db_pics/mdpics/MD-266437a.jpg]](db_pics/mdpics/MD-266437a.jpg)
![Sphalerite, Chalcopyrite, Galena from Emperius Mine (Emperious Mining Company; Del Monte Mining Company; Chance Mining Co; Bachelor Mine; Amethyst Mine; Commodore Mining Company; Last Chance and Pittsburg Mine Co; New [db_pics/mdpics/MD-266437b.jpg]](db_pics/mdpics/MD-266437b.jpg)
![Chalcopyrite, Sphalerite, Quartz from Commodore Mine, Amethyst Vein, Creede District, Mineral Co., Colorado, USA [db_pics/mdpics/MD-27146a.jpg]](db_pics/mdpics/MD-27146a.jpg)