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Mineral Specimens with Calcite
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9.0 x 7.8 x 5.7 cm. Water-clear, glassy calcite scalenohedrons to 2.2 cm with very interesting, oriented inclusions of sparkly marcasite microcrystals cover this fine, pineapple-shaped specimen from the limestone quarries at Buffalo, Iowa. Ex. George Feist Collection.
8.8 x 7.4 x 5.5 cm. A striking fluorite cube fully covered with pearlescent, flattened calcite rhombs and sparkly, iridescent pyrite microcrystals from recent finds at the well-known El Hammam Mine of Morocco. The translucent fluorite is sea-green with a purple exterior. Outstanding purple fluorescence on the fluorite and orange fluorescence on the calcite. This is unusual material that came out a few years ago.
12 x 5.7 x 4.5 cm. A beautiful new find: light pink cobaltoan calcite from Bou Azzer. Unlike most material from this locality, this piece features sharp scalenohedra sticking up from the matrix like a porcupine’s quills. There are very few broken crystals, and all are very translucent or almost gemmy. There is a white secondary growth preferentially deposited on some faces which makes for a nice accent rimming the base of some crystals, highlighting their individuality. One of the neat features of this piece is the fluorescence - while the entire piece glows red/orange under SW UV light, the tips of the scalenohedra glow much brighter and more orange.
9.7 x 7.5 x 4.8 cm. Interesting light pink translucent, lustrous manganoan calcite from Dal'negorsk. It glows under SW UV light. Pyrite and another sulfide (probably sphalerite, which is common at this mine, but it could be something else) can be seen within and on the crystals. On the back of the piece are sulfides and small euhedral quartz crystals.
7.4 x 3.8 x 2.3 cm. This piece is a lovely "fan"-shaped group of modified scalenohedral Manganoan Calcite crystals with a soft pink hue. The crystals are translucent when backlit and the overall aesthetics of the piece make it a very good specimen of this classic San Juan material. The Idarado mine is most famous for its Manganoan Calcite specimens. In fact, the largest quantity of the finest quality Manganoan Calcite specimens from Colorado were found in this mine. Ex. Brian Kosnar Collection.
Beautifully striated, lustrous and translucent colorless nailhead calcite crystals to 4.7 cm on matrix. 11.0 x 9.5 x 6.3 cm
A GORGEOUS specimen of a lustrous, nearly transparent golden-amber 4.3 cm barite crystal with a frosted termination face nestled in a vug of honey-yellow calcite crystals from the famous Elk Creek, South Dakota locality. 6.5 x 5.0 x 3.7 cm
A STRIKING, pristine CABINET plate of blue-green calcite colored by blue-green chalcanthite(?) or malachite(?) that is partially included within the calcite. The flattened rhombs of lustrous calcite from a very uncommon French locality would be good even if they were ugly, but they are NOT! The lot came to market about 5 years ago and I bought much of it. It originated with somebody with contacts at the mine, which is now not only defunct, but reclaimed and protected from further mining by the French government. This is a phenomenal showpiece because the color is so shocking and frankly you have to really think about it before guessing that you are looking at calcite! 10.5 x 6.3 x 3.6 cm.
A gorgeous Mexican combo specimen, featuring sharp clusters of calcite perched on a combo of tiny ball-shaped conichalcite on a plate of bright green cuproadamite microcrystals. (NOTE CORRECTED TEXT) 9.6 x 7.1 x 3.0 cm
A stunning and uncommon combo specimen from Azerbaijan (better known for military unrest). It features a beautiful translucent ball of calcite on a bed of velvety moss-green epidote, with gemmy quartz crystals adding an accent and euhedral magnetite crystals on the back! 6.2 x 5.5 x 4.2 cm
2.7 x 2.6 x 1.3 cm. Millerite is not well known and is seldom available from Russian localities. This fine thumbnail features a radiating spray of brassy millerite needles to 2.0 cm in and on a sharp, translucent, light gray calcite crystal. These are extremely large and highly representative millerite needles from this Urals Mountains locale. It would be at least a decade old.
9 x 7.9 x 4.5 cm. This calcite, doubly-terminated and in a cluster of smaller calcites, somehow become attached one of those usually floater etched fluorite corners, formed from strange chemical processes in which large cubic fluorites from this mine sometimes decay into 4 corners that then come apart and fall gently into the pocket over time. Somehow, the corner must have gently landed on this calcite as it was forming, as the two are intergrown and totally attached. The fluorite must have formed long before, thus. This fluorite corner is complete and features the full stalk into what would have been the center of a cube. It has the sharp corner, however, remaining. Ex. Dr. Steve Smale Collection.
10.0 x 9.0 x 6.5 cm. A rich purple-zoned, translucent fluorite, to 4.5 cm across, is emplaced on sugary white baryte and a doubly terminated, glassy, tan crystal of calcite, 7.0 cm across. The piece is remarkably terminated all around because it fell from the pocket well at one time, and then secondary microcrystallization covered over the backside, so that this is really a floater now.
4.8 x 4.2 x 2.0 cm. A doubly terminated, partially gemmy, tan crystal of calcite, 4.6 cm in length, is attached to a cluster of splendent, black sphalerite crystals, some showing gemmy orange highlights.
A very uncommon Sherman Tunnel barite, with lustrous orange crystals, accented by poker-chip calcites. From the collection of noted Colorado collector George Fisher. 7.3 x 4 x 3.5 cm
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Rob Lavinsky, rob@irocks.com
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share specimen![Calcite, Marcasite from Linwood Mine, Buffalo, Scott Co., Iowa, USA [db_pics/mdpics/MD-245537a.jpg]](db_pics/mdpics/MD-245537a.jpg)
![Calcite, Pyrite, Fluorite from El Hammam Mine (El Hamman Mine), Mount Hammam, Meknès, Meknès Prefecture, Meknès-Tafilalet Region, Morocco [db_pics/mdpics/MD-245538a.jpg]](db_pics/mdpics/MD-245538a.jpg)
![Calcite, Pyrite, Fluorite from El Hammam Mine (El Hamman Mine), Mount Hammam, Meknès, Meknès Prefecture, Meknès-Tafilalet Region, Morocco [db_pics/mdpics/MD-245538b.jpg]](db_pics/mdpics/MD-245538b.jpg)
![Calcite, Pyrite, Fluorite from El Hammam Mine (El Hamman Mine), Mount Hammam, Meknès, Meknès Prefecture, Meknès-Tafilalet Region, Morocco [db_pics/mdpics/MD-245538c.jpg]](db_pics/mdpics/MD-245538c.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-245558a.jpg]](db_pics/mdpics/MD-245558a.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-245558b.jpg]](db_pics/mdpics/MD-245558b.jpg)
![Calcite (Var: Cobaltoan Calcite) from Bou Azzer, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco [db_pics/mdpics/MD-245558c.jpg]](db_pics/mdpics/MD-245558c.jpg)
![Calcite (Var: Manganoan Calcite) from 2nd Sovietskii Mine (2nd Sovietskiy Mine), Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-245561a.jpg]](db_pics/mdpics/MD-245561a.jpg)
![Calcite (Var: Manganoan Calcite) from 2nd Sovietskii Mine (2nd Sovietskiy Mine), Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-245561b.jpg]](db_pics/mdpics/MD-245561b.jpg)
![Calcite (Var: Manganoan Calcite) from Idarado Mine, Telluride, Ouray District (Uncompahgre District), San Miguel Co., Colorado, USA [db_pics/mdpics/MD-245685a.jpg]](db_pics/mdpics/MD-245685a.jpg)
![Calcite from Xianghualing Mine (Hsianghualing Mine), Xianghualing Sn-polymetallic ore field, Linwu Co., Chenzhou Prefecture, Hunan Province, China [db_pics/mdpics/MD-24607a.jpg]](db_pics/mdpics/MD-24607a.jpg)
![Baryte, Calcite from Elk Creek locality, Dalzell, Meade Co., South Dakota, USA [db_pics/mdpics/MD-24609a.jpg]](db_pics/mdpics/MD-24609a.jpg)
![Calcite from Canaveilles, Pyrénées-Orientales, Languedoc-Roussillon, France [db_pics/mdpics/MD-24611a.jpg]](db_pics/mdpics/MD-24611a.jpg)
![Calcite, Conichalcite, Adamite (Var: Cuprian Adamite) from Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico [db_pics/mdpics/MD-24626a.jpg]](db_pics/mdpics/MD-24626a.jpg)
![Epidote, Quartz, Calcite, Magnetite from Azerbaijan [db_pics/mdpics/MD-24628a.jpg]](db_pics/mdpics/MD-24628a.jpg)
![Millerite, Calcite from Saranovskii Mine (Saranovskoe), Saranovskaya (Sarany) Village, Gorozavodskii area, Permskaya Oblast', Middle Urals, Urals Region, Russia [db_pics/mdpics/MD-246444a.jpg]](db_pics/mdpics/MD-246444a.jpg)
![Millerite, Calcite from Saranovskii Mine (Saranovskoe), Saranovskaya (Sarany) Village, Gorozavodskii area, Permskaya Oblast', Middle Urals, Urals Region, Russia [db_pics/mdpics/MD-246444b.jpg]](db_pics/mdpics/MD-246444b.jpg)
![Calcite, Fluorite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-246467a.jpg]](db_pics/mdpics/MD-246467a.jpg)
![Fluorite, Baryte, Calcite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-246469a.jpg]](db_pics/mdpics/MD-246469a.jpg)
![Calcite, Sphalerite from Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA [db_pics/mdpics/MD-246476a.jpg]](db_pics/mdpics/MD-246476a.jpg)
![Baryte, Calcite from Sherman Mine (Sherman tunnel; Leadville Corporation Mine; Day Mines; Hilltop Mine), Upper Iowa Gulch, Leadville District, Lake Co., Colorado, USA [db_pics/mdpics/MD-24756a.jpg]](db_pics/mdpics/MD-24756a.jpg)