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Mineral Specimens with Calcite
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13.4 x 8.7 x 5.0 cm. This is one of the most sparkly, jewel-like calcites I have seen of this material (once a classic, in the 1960s-1970s, and now quite rare to find). It is a very large, curving cluster of calcite on gossan matrix. The calcites are richly included with dispersed, micro-hematite and this gives them a bright red color. Interestingly, only the top layer of calcite is so included, and thus it contrasts starkly to the sparkling clear calcite below. The piece is very 3-dimensional and is much more impressive in person. Ex. Harold Urish Collection.
5.2 x 5.0 x 2.8 cm. A highly unusual zoned calcite specimen. I have seen thousands of pieces from here, and yet none quite like this. Ex. Harold Urish Collection.
4.2 x 3.6 x 2.5 cm. A classic, block-and-stepped calcite clustre from finds here of the early 1980s. We seldom see this classic form around today, but once they were common. This cluster of unusual, squared crystals is complete-all-around. Ex. Harold Urish Collection.
10.6 x 8.0 x 5.5 cm. A beautiful combination piece of bright white calcite covered with a second generation of even more sparkly, minutely-crystallized calcite perched on bright jet-black sphalerite crystals. Very sparkly and colorful overall for a black-and-white piece. Small, gemmy, transparent cuboctahedral fluorites sprinkle the calcite at its tip and are scattered about the matrix as well. I am told that not many of these came out with the main pocket of fluorites.
18.0 x 10.1 x 7.4 cm. An excellent, old-time, large cabinet combination specimen from the Old Dominion Mine at Globe, Arizona. Sparkling, gemmy, emerald-green, primary malachite microcrystals in bubbly, botryoids richly cover the vuggy, quartz-rich matrix. Colorless, glassy calcite rhombs, in swaths or as isolated crystals are a nice accent. But the interesting thing about this piece is the fact that there are two secondary generations of malachite that cover the original primary malachite crystals: lighter green malachite richly scattered throughout; and pastel-green malachite on the fringes. An attractive, large combination piece from this historic Arizona locale, probably dating to the 1950s or earlier. Weighs 3.1 pounds or 1.4 kilograms.
8.4 x 7.4 x 5.4 cm. A dramatic, very attractive calcite specimen from recent finds at Santa Eulalia, Mexico. Sharp, lustrous, and translucent, dogtooth calcite crystals are partially coated with hematite and have striking, clay-stained, internal hematite phantoms. Crystals reach 5.2 cm on this piece. The dogteeth are in great shape, with only one crystal having minute edgewear. A classic Santa Eulalia calcite specimen.
4.1 x 3.7 x 1.1 cm. Beautiful, lustrous, vivid pink cobaltoan calcite rhombs cover the matrix plate on this fine piece from the famous Bou Azzer District of Morocco. The translucent crystals have beautiful waxy lustre. Very highly representative of this find, as the rhombs have way above average color and lustre.
10.4 x 7.1 x 3.8 cm. This is an excellent, two-sided, cabinet example of jamesonite, for which Zacatecas, Mexico is famous. The sculptural piece consists solidly of a showy, jackstraw cluster of lustrous to matte-finish jamesonite blades to 2.7 cm. One side holds a 1.3 cm pod of calcite rhombs and pyrite crystals as a nice accent. The crystals are robust on this piece. This fine piece, from the Dave Stoudt Collection, comes from the much less well-known Noria Mine of Zacatecas.
9.7 x 6.0 x 5.4 cm. Sharp, discrete calcite rhombs coated with drusy quartz richly and attractively cover the mounded matrix on this fine and rare specimen from Alpine County, California. The calcite rhombs reach 1.8 cm. Very seldom are any mineral specimens of any species available from Alpine County. Ex. Dennis Mullane Collection and dating from the 1970s or earlier.
9.5 x 8.8 x 4.7 cm. The quarry at Upper New Street is over 100 years old (it opened in 1893). During the mid 1980's to early 1990's, there was a lot of collecting that took place between the Upper New Street and Lower Street Quarries in an area that is affectionately referred to by some as "Middle New Street". The majority of the specimens from this area are still labeled as being found at Upper New Street even though they were not found in the quarry itself. Nonetheless, this is one of the most famous Trap Rock quarries in New Jersey and is probably most famous for its amazing and unique Prehnite casts after Anhydrite (sometimes called "fingers" or "snakeheads"). This specimen does not feature any casts, but rather many beautiful bright apple-green spherical aggregates Prehnite measuring up to 8 mm across which are associated with Calcite on basalt matrix. This specimen is actually from a recent find, and has excellent color Prehnite. Ex. Brian Kosnar Collection.
6.9 x 4.5 x 3.3 cm. An excellent, sparkling, translucent, pale pink cluster of manganoan calcite crystals. This is classic for the locale, but rarely seen on the market today. With crystals to 3 cm, this is actually both an attractive piece and one with good sized crystals, and import. From the well-known Tucson collection of 40-year collector, Harold Urish.
3.4 x 3.2 x 2.2 cm. An exposed geode lined with beige Calcite crystals is host to some small, bright metallic needles of the well known Nickel Suflide, Millerite. There is a group of almost reticulated Millerite crystals that have a geometric (preferential) pattern which have overgrown a single Chalcopyrite crystal in the vug. There is also another Chalcopyrite which has no Millerite coating it whatsoever. A very interesting specimen of this classic material from Kentucky. Ex. Richard Kosnar Collection.
10.5 x 6.9 x 5.4 cm. The now closed Millington Quarry existed for over 100 years (it opened in 1895). Starting in the late 1970's the quarry reopened and started producing a large number of some of the most interesting and beloved specimens from this incredible quarry. This is one of the most famous trap rock quarries in New Jersey and it perhaps its greatest claim to fame are its spectacular Pectolite specimens, along with some impressive Prehnites. This particular piece hosts several vibrant, almost "velvety" greenish color radiating spherical aggregates of Prehnite sitting atop basalt. There are also some small grey-white Calcite crystals on the specimen as well. Now that the mineralized zone at Millington is finished, you will not see any more of these beautiful specimens on the market anymore. A great trap rock display specimen from this significant New Jersey locality. Ex. Brian Kosnar Collection.
7.8 x 5.9 x 5.3 cm. A striking, complete-all-around, arborescent calcite cluster of lustrous, iron oxide-tinted rhombs in dramatic, stepped-growth. Classic, highly desirable material from the 1994 find on Level 14 of the mine, and the Jesse Fisher and Joan Kureczka Collection.
12.0 x 11.0 x 6.7 cm. Sparkling, gemmy, emerald-green dioptase microcrystals cover the undulating, cabinet-sized matrix coated with contrasting, highly desirable, white calcite. All on this excellent larger specimen from the Tsumeb Mine. This striking piece is unusually highlighted with a scattering of primary malachite balls to 1.0 cm. The balls consist of tiny needles of malachite and you can see dioptase crystals on the balls. Dioptase and malachite are an uncommon association, in fact. Fascinating, choice combination material from this noted locale. Ex. Matthew Webb Collection.
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Rob Lavinsky, rob@irocks.com
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share specimen![Calcite, Hematite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-283241a.jpg]](db_pics/mdpics/MD-283241a.jpg)
![Calcite, Hematite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-283241b.jpg]](db_pics/mdpics/MD-283241b.jpg)
![Calcite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-283246a.jpg]](db_pics/mdpics/MD-283246a.jpg)
![Calcite from Otero Co., Colorado, USA [db_pics/mdpics/MD-283279a.jpg]](db_pics/mdpics/MD-283279a.jpg)
![Malachite, Calcite from Old Dominion Mine (Old Dominion shaft; Globe and Transit Mine; Old Dominion and United Globe Mine), Buffalo Hill, Old Dominion vein system, Globe, Globe Hills, Globe Hills District [db_pics/mdpics/MD-283315a.jpg]](db_pics/mdpics/MD-283315a.jpg)
![Malachite, Calcite from Old Dominion Mine (Old Dominion shaft; Globe and Transit Mine; Old Dominion and United Globe Mine), Buffalo Hill, Old Dominion vein system, Globe, Globe Hills, Globe Hills District [db_pics/mdpics/MD-283315b.jpg]](db_pics/mdpics/MD-283315b.jpg)
![Calcite, Hematite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-283419a.jpg]](db_pics/mdpics/MD-283419a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-283495a.jpg]](db_pics/mdpics/MD-283495a.jpg)
![Jamesonite, Calcite, Pyrite from Noria Mine, San Pantaleón de la Noria (La Noria de San Pantaleón; Noria de la Pentalón), Mun. de Sombrerete, Zacatecas, Mexico [db_pics/mdpics/MD-283503a.jpg]](db_pics/mdpics/MD-283503a.jpg)
![Jamesonite, Calcite, Pyrite from Noria Mine, San Pantaleón de la Noria (La Noria de San Pantaleón; Noria de la Pentalón), Mun. de Sombrerete, Zacatecas, Mexico [db_pics/mdpics/MD-283503b.jpg]](db_pics/mdpics/MD-283503b.jpg)
![Calcite, Quartz from Alpine Co., California, USA [db_pics/mdpics/MD-283992a.jpg]](db_pics/mdpics/MD-283992a.jpg)
![Prehnite, Calcite from Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA [db_pics/mdpics/MD-284021a.jpg]](db_pics/mdpics/MD-284021a.jpg)
![Prehnite, Calcite from Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA [db_pics/mdpics/MD-284021b.jpg]](db_pics/mdpics/MD-284021b.jpg)
![Calcite (Var: Manganoan Calcite) from Magma Mine (Magma Superior Mine; Irene claim; Hub claim; Pomeroy; Superior Division; Silver Queen; Monarch claim; Magma Copper Mine; Broken Hill; Apex), Superior, Pioneer District, [db_pics/mdpics/MD-284764a.jpg]](db_pics/mdpics/MD-284764a.jpg)
![Millerite, Chalcopyrite, Calcite from US 27 roadcut, Halls Gap, Lincoln Co., Kentucky, USA [db_pics/mdpics/MD-284769a.jpg]](db_pics/mdpics/MD-284769a.jpg)
![Millerite, Chalcopyrite, Calcite from US 27 roadcut, Halls Gap, Lincoln Co., Kentucky, USA [db_pics/mdpics/MD-284769b.jpg]](db_pics/mdpics/MD-284769b.jpg)
![Millerite, Chalcopyrite, Calcite from US 27 roadcut, Halls Gap, Lincoln Co., Kentucky, USA [db_pics/mdpics/MD-284769c.jpg]](db_pics/mdpics/MD-284769c.jpg)
![Millerite, Chalcopyrite, Calcite from US 27 roadcut, Halls Gap, Lincoln Co., Kentucky, USA [db_pics/mdpics/MD-284769d.jpg]](db_pics/mdpics/MD-284769d.jpg)
![Prehnite, Calcite from Millington Quarry (Morris County Crushed Stone Co. Quarry; Tilcon Quarry), Bernards Township, Somerset Co., New Jersey, USA [db_pics/mdpics/MD-284834a.jpg]](db_pics/mdpics/MD-284834a.jpg)
![Calcite from Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-284862a.jpg]](db_pics/mdpics/MD-284862a.jpg)
![Calcite from Potosí Mine (El Potosí Mine), Francisco Portillo, West Camp, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-284862b.jpg]](db_pics/mdpics/MD-284862b.jpg)
![Dioptase, Malachite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-285095a.jpg]](db_pics/mdpics/MD-285095a.jpg)
![Dioptase, Malachite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-285095b.jpg]](db_pics/mdpics/MD-285095b.jpg)