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Mineral Specimens with Calcite
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7.0 x 5.8 x 3.9 cm. A classic specimen of orange to deep red color crystalline Zincite mixed with contrasting white Calcite and grey-black Franklinite. This material is some of the most well known (and easily recognizable) from all of Franklin. From the famous New Jersey collection of Richard A. Kosnar.
11.8 x 8.7 x 5.0 cm. A fine cabinet cobaltoan calcite plate from recent finds at Bou Azzer, Morocco. Two varieties of gemmy and lustrous, pastel-pink cobaltoan calcite comprise this very rich piece. First and foremost is the impressive "ball" of radiating, dogtooth crystals crowning the top of piece. The rest of the plate is covered with very interesting scalenohedral clusters of intergrown crystals, that look like pink Christmas trees or jagged mountain peaks. A fascinating crystal form. Essentially pristine.
2.2 x 1.3 x 1.1 cm. Quincy Mine copper in calcite specimens are probably the most desirable Michigan Copper Country mineral species and are consequently difficult to obtain in good specimens. This superb thumbnail is stereotypical of the species and locale: a sharp, gemmy calcite scalenohedron with mildly striated faces richly included with copper with a fine patina. Ex. Jaime Bird Collection.
17.6 x 7.5 x 7.5 cm. A very impressive, doubly terminated, large cabinet calcite specimen from the Brushy Creek Mine of Missouri. This lustrous, smoke-gray giant is composed of several crystals and has striking, multiple terminations at each end. The amazing saddle area in the middle is totally covered with sparkly, iridescent chalcopyrite. These specimens have very interesting development: the original scalenohedrons were all covered with chalcopyrite, and then the calcite began growing again, enveloping the original crystal in some areas and leaving the chalcopyrite exposed in others. Nearly pristine. Ex. George Feist Collection.
5.5 x 4.1 x 2.8 cm. A 7 mm, gem-like, complex calcite rhomb is perched on an aesthetic cluster of sparkly, translucent, grayish willemite botryoids from Level 16, Mineral Shaft 5, Santa Eulalia, Mexico. Ex. Marty Zinn Collection # 7975. Willemite from this locale is rare on the market today and was found only sparsely.
4.4 x 4.2 x 2.4 cm. Pearlescent, dogtooth calcite crystals richly cover the rind of dolomite on this fine mounded specimen from the Tsumeb Mine. Ex. Rob Smith Collection.
7.2 x 4.8 x 4.5 cm. A showy, complete-all-around calcite specimen from the Brushy Creek Mine. Lustrous, gray calcite scalenohedrons to 4.0 cm are aesthetically and preferentially coated with sparkly, lightly iridescent to non-iridescent, chalcopyrite crystals. This is classic combination material from this locale. These specimens have very interesting development: the original scalenohedrons were all covered with chalcopyrite, and then the calcite began growing again, enveloping the original crystal in some areas and leaving the chalcopyrite exposed in others. Nearly pristine. Ex. Karl Warning Collection and purchased at the Dallas Show in November, 1979 at the Texas State Fair grounds.
7.5 x 4.6 x 2.8 cm. A striking and very pretty, 3-dimensional specimen of two generations of calcite crystals included with variable shades of red hematite microcrystals from one of the famous mines at Santa Eulalia, Mexico. The three large, to 1.5 cm, partially included, transparent calcite rhombs really highlight this fine piece, which reminds me of the famous copper-included calcite crystals from Onganja, Namibia. Ex. Wesley Stark Collection.
6.5 x 5.0 x 3.7 cm. Amongst the fine cobaltoan calcites that have been coming from Bou Azzer have been just a few of these amazing shocking pink specimens, presumably from a higher concentration of cobalt, but whatever the case, the crystals just have this vivid saturation of colors. These crystals are extremely gemmy and lustrous and the bit of malachite is a fine accent. Ex. Wesley Stark Collection.
8.2 x 6.5 x 3.7 cm. A rare specimen of Italian botryoidal calcite, actually quite aesthetic in addition to being uncommon. Dozens of translucent greenish-yellow balls are set in a very showy vug against dark volcanic basalt. The 1.5 cm, amber ball highlights this fine piece from the Wesley Stark Collection. The specimen is from Montalto di Castro, about 90 km northwest of Rome. Many came out in the late 1980s but they have been scarce, since.
8.8 x 6.7 x 3.4 cm. A classic Meikle Mine baryte, with golden gem crystals, the largest showing phantoms. These are brilliantly glassy in lustre, mostly transparent, and represent to most folks the pinnacle of American barytes in the recent era. From the 1075 Level. Ex. Harold Urish Collection.
10.5 x 8.9 x 3.6 cm. This is a strange, sculptural specimen that is a floater, consisting of calcite crystals that are heavily included by sand (and are perhaps more sand than calcite , in any case). On one side, which I find more interesting, the aspect presented are "balls" at the base of the dogtooth calcite crystals, all joined together. The other side shows typical calcite scalenohedra, or "dogtooth" crystals, also sand-included This is a floater, complete-all-around. Ex. Harold Urish Collection.
4.3 x 3.8 x 1.6 cm. This is an unusual specimen for its color, consisting of minute calcites richly included by aurichalcite. Ex. Harold Urish Collection.
15.7 x 11.4 x 6.7 cm. A floater cluster of over a dozen intergrown, euhedral calcite crystals, with natural sand inclusions. These strange calcites are very distinctive from this locality; American classics. Now seldom seen as much of this area is within an Indian reservation and collecting is prohibited, they were collected heavily in the 1960s-1970s I am told. This is a particularly large and sculptural cluster. According to MINDAT: the site is a National Natural Landmark (NNL) and is closed to collecting. Ex. Harold Urish Collection.
5.6 x 3.1 x 1.6 cm. A sparkling, bright specimen with sugary dioptase drusy crystals sprinkled upon stark white, equally sparkling, calcite rhombohedra. Ex. Harold Urish Collection.
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
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share specimen![Zincite, Franklinite, Calcite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA [db_pics/mdpics/MD-247627a.jpg]](db_pics/mdpics/MD-247627a.jpg)
![Zincite, Franklinite, Calcite from Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA [db_pics/mdpics/MD-247627b.jpg]](db_pics/mdpics/MD-247627b.jpg)
![Calcite (Var: Cobaltoan Calcite) from Aghbar Mine (Arhbar Mine), Aghbar, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-247657a.jpg]](db_pics/mdpics/MD-247657a.jpg)
![Copper, Calcite from Quincy Mine, Hancock, Houghton Co., Michigan, USA [db_pics/mdpics/MD-247658a.jpg]](db_pics/mdpics/MD-247658a.jpg)
![Calcite, Chalcopyrite from Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-247669a.jpg]](db_pics/mdpics/MD-247669a.jpg)
![Calcite, Willemite from Mineral Shaft 5, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-247678a.jpg]](db_pics/mdpics/MD-247678a.jpg)
![Calcite, Willemite from Mineral Shaft 5, Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-247678b.jpg]](db_pics/mdpics/MD-247678b.jpg)
![Calcite, Dolomite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-247681a.jpg]](db_pics/mdpics/MD-247681a.jpg)
![Calcite, Chalcopyrite from Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-247696a.jpg]](db_pics/mdpics/MD-247696a.jpg)
![Calcite, Chalcopyrite from Brushy Creek Mine, Greeley, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-247696b.jpg]](db_pics/mdpics/MD-247696b.jpg)
![Calcite, Hematite from Santa Eulalia District, Mun. de Aquiles Serdán, Chihuahua, Mexico [db_pics/mdpics/MD-247704a.jpg]](db_pics/mdpics/MD-247704a.jpg)
![Calcite (Var: Cobaltoan Calcite), Malachite from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-247731a.jpg]](db_pics/mdpics/MD-247731a.jpg)
![Calcite (Var: Cobaltoan Calcite), Malachite from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-247731b.jpg]](db_pics/mdpics/MD-247731b.jpg)
![Calcite from Campomorto Quarry, Pietra Massa Locality, Montalto di Castro, Viterbo Province, Latium, Italy [db_pics/mdpics/MD-247739a.jpg]](db_pics/mdpics/MD-247739a.jpg)
![Baryte, Calcite from Meikle Mine, Bootstrap District, Elko Co., Nevada, USA [db_pics/mdpics/MD-247868a.jpg]](db_pics/mdpics/MD-247868a.jpg)
![Calcite from Berkshire Co., Massachusetts, USA [db_pics/mdpics/MD-247891a.jpg]](db_pics/mdpics/MD-247891a.jpg)
![Calcite, Aurichalcite from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-247894a.jpg]](db_pics/mdpics/MD-247894a.jpg)
![Calcite from Rattlesnake Butte, Jackson Co., South Dakota, USA [db_pics/mdpics/MD-247895a.jpg]](db_pics/mdpics/MD-247895a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-247900a.jpg]](db_pics/mdpics/MD-247900a.jpg)
![Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-247900b.jpg]](db_pics/mdpics/MD-247900b.jpg)