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6.0 x 5.4 x 3.8 cm. Gleaming, razor-sharp, snowy-white rhombs of calcite are piled up on a matrix of intermixed, massive pyrite and sphalerite. You can see some tiny chalcopyrites speckling the surface of the calcites. Ex. Dave Stoudt Collection.
12.9 x 9.4 x 5.4 cm. Complex, frosty crystals of fluorite with water-clear interiors cover a matrix of solid galena, with a layer of bright galena crystals underneath the fluorites. Patches of quartz and calcite crystals add a pretty accent to the fluorites. The fluorites alternate frosty faces with transparent "windows" into the clear interiors. Ex. Consie Prince Collection.
10.4 x 9.4 x 7.0 cm. An exceptionally pretty and quite large specimen of fluorite from China, in wonderful condition. The crystals, with fine transparency, measure to 2.5 cm along the edge. Those are natural bevels on the corners. You can see little sparkly calcites on selective faces of the fluorites.
14.0 x 9.2 x 8.4 cm. What makes these huge calcite crystals from Tsumeb so wonderful is the super-complex stepping on the faces; they result is that they look like pyramids of tiny stacked blocks. They are actually flattened rhombohedrons if you look closely. The reddish color is from inclusions of hematite. Ex. Rob Smith Collection.
6.9 x 5.4 x 5.4 cm. A superb Elmwood piece out of the collection of Marty Lewadny. A fine calcite twin, measuring 5 cm, slants off a field of small calcites that cover the surface of a cluster of dark crystals of sphalerite.
15.3 x 10.8 x 3.4 cm. An old Tri-State specimen that is quite unusual: on a surface of deep red micro-sphalerites (a few of them larger, with one isolated crystal measuring 1 cm) are several snowy white crystals. These are very sharp crystals of calcite that have been wrapped in a snowy layer of gypsum - and the note from George Feist on the bottom of its base indicates he thought that pseudomorphism was going on. If you look closely, you can see the sharp faces of the calcite crystals where they show in places through the gypsum, so this may be a replacement caught in progress or simply a very thick (and unusual) coating. Ex. George Feist Collection.
12.9 x 11.5 x 8.3 cm. This a very large, fine crystal of calcite, jutting off of a perfect backdrop of matrix covered with sparkly dolomites. The calcite has "cut-glass" growth patterns on its very lustrous surface. Ex. George Feist Collection.
10.0 x 6.4 x 4.6 cm. A unique calcite specimen that was in both the Feist collection and that of Joe Kielbaso. Two groups of tightly intergrown crystals flank the matrix, terminating pyramidally at different heights. Inclusions give the crystals an unusual grey color.
11.5 x 7.5 x 4.2 cm. This is an outstanding Tri-State specimen (probably 40-60 years old). Here you have four superb amber-colored calcites perfectly arranged along the edge of a matrix covered with sparkling, wine-colored sphalerites. The largest calcite measures 6.5 cm. Ex. George Feist Collection.
Fantastic doubly-terminated scalenohedron on matrix of a rich pink cobaltian calcite from the classic locality for this form and color. Adding to the value of this are two balls of malachite perched aesthetically along one of the front faces. This material is getting more and more scarce, and none has been mined recently. 3.2 x 1.7 x 1.2 cm
10.4 x 9.0 x 5.4 cm. An excellent cabinet cluster of large, waxy, translucent and colorless calcite rhombs from the Tsumeb Mine. The superb, large central rhomb is 9.7 cm on the diagonal and has a really interesting hoppered or cavernous area in the center of the crystal. Accompanied by a Zweibel Mineral Kingdom of Woodmere label, dating the piece to prior to mid-1980. Ex Rob Smith Collection.
8.8 x 5.5 x 3.1 cm. A superb combination specimen from the Sweetwater Mine (Milliken Mine) of Missouri’s Viburnum Trend. A pristine, gemmy and lustrous, doubly terminated, amber calcite crystal is accented and complimented with two clusters of iridescent marcasite cogwheels. Ex. George Feist Collection #2864.
6.2 x 4.7 x 4.2 cm. A classic, old-time specimen from Michigan’s Copper Country. Copper in calcite pieces have always been one of the most sought after mineral species from this historic district. This superb piece features copper in calcite crystals on both sides of the gossan matrix, which is richly coated with two generations of epidote. The "A" side has a gorgeous cluster of glassy, transparent calcite crystals with super patina included copper. The two-parallel-growth crystals are doubly terminated and are 3.7 cm long. The calcite cluster on the "B" side also has gemmy and lustrous crystals and the matrix has a rich coating of the two generations of epidote. Another striking feature of this fine piece are the discrete micro copper crystals scattered about on both sides. Specimens of this quality probably date from around 1900 or earlier. Ex. John Ydren Collection.
5.4 x 5.3 x 5.0 cm. Translucent, waxy lustre, stepped faces calcite scalenohedrons surround a bar of scintillating pyrite microcrystals like sharp mountain peaks on this showy and excellent specimen from the La Sirena Mine of Guanajuato, Mexico. This superb specimen is from the Karl Warning Calcite Collection and was purchased from Fender Natural Resources in 2000 in Dallas. Classic Guanajuato material.
14.3 x 3.5 x 2.7 cm. A superb elongated, ship- and wedge-shaped cabinet specimen from the Tsumeb Mine. Pastel-green duftite coats a showy multitude of sharp, glassy, colorless calcite rhombs. The large rhomb is 2.0 cm and some of the crystals are interpenetrating. Ex. Karl Warning Collection and purchased at the Tucson Show in 1989 from Don Olson. Classic Tsumeb material.
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share specimen![Calcite, Sphalerite, Pyrite from Naica, Mun. de Saucillo, Chihuahua, Mexico [db_pics/mdpics/MD-209777a.jpg]](db_pics/mdpics/MD-209777a.jpg)
![Fluorite, Quartz, Calcite, Galena from Naica, Mun. de Saucillo, Chihuahua, Mexico [db_pics/mdpics/MD-209788a.jpg]](db_pics/mdpics/MD-209788a.jpg)
![Fluorite, Calcite from Xianghuapu Mine (Maiwan Mine), Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-209841a.jpg]](db_pics/mdpics/MD-209841a.jpg)
![Calcite, Hematite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-209849a.jpg]](db_pics/mdpics/MD-209849a.jpg)
![Calcite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-209852a.jpg]](db_pics/mdpics/MD-209852a.jpg)
![Gypsum, Calcite, Sphalerite from Joplin Field, Tri-State District, Jasper Co., Missouri, USA [db_pics/mdpics/MD-209858a.jpg]](db_pics/mdpics/MD-209858a.jpg)
![Gypsum, Calcite, Sphalerite from Joplin Field, Tri-State District, Jasper Co., Missouri, USA [db_pics/mdpics/MD-209858b.jpg]](db_pics/mdpics/MD-209858b.jpg)
![Calcite 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-209860a.jpg]](db_pics/mdpics/MD-209860a.jpg)
![Calcite 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-209861a.jpg]](db_pics/mdpics/MD-209861a.jpg)
![Calcite, Sphalerite from Baxter Springs, Picher Field, Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-209862a.jpg]](db_pics/mdpics/MD-209862a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Dikuluwe Mine, Kolwezi, Western area, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) [db_pics/mdpics/MD-20991a.jpg]](db_pics/mdpics/MD-20991a.jpg)
![Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-209945a.jpg]](db_pics/mdpics/MD-209945a.jpg)
![Calcite, Marcasite 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-209947a.jpg]](db_pics/mdpics/MD-209947a.jpg)
![Calcite, Copper, Epidote from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-209969a.jpg]](db_pics/mdpics/MD-209969a.jpg)
![Calcite, Copper, Epidote from Keweenaw Co., Michigan, USA [db_pics/mdpics/MD-209969b.jpg]](db_pics/mdpics/MD-209969b.jpg)
![Calcite, Pyrite from La Sirena Mine, Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico [db_pics/mdpics/MD-209973a.jpg]](db_pics/mdpics/MD-209973a.jpg)
![Duftite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-209974a.jpg]](db_pics/mdpics/MD-209974a.jpg)
![Duftite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-209974b.jpg]](db_pics/mdpics/MD-209974b.jpg)