Mineral Specimens with Calcite

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55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108
109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
199 200 201 202 203 204 205 206 207 208

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03edd37a - Franklinite in Willemite, Zincite, and Calcite - SOLD
Sterling Hill Mine, Ogdensberg, New Jersey, USA

cabinet, 9 x 9 x 8 cm
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ex.  Dr. Edward David

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Franklinite in Willemite, Zincite, and Calcite from Sterling Hill Mine, Ogdensberg, New Jersey, USA [db_pics/pics/03edd37aa.jpg]
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Franklinite in Willemite, Zincite, and Calcite from Sterling Hill Mine, Ogdensberg, New Jersey, USA [db_pics/pics/03edd37ab.jpg]
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Franklinite in Willemite, Zincite, and Calcite from Sterling Hill Mine, Ogdensberg, New Jersey, USA [db_pics/pics/03edd37ac.jpg]

An exceptionally dramatic piece with a stark 4 cm franklinite just sitting nicely in matrix of zincite, willemite, and calcite. The crystal is remarkably free of cracking, which happens often in larger crystals; and also free of shoe polish and glue fill in said cracks - a more frequent occurence than we specimen collectors like to admit. But, in the old days, it was almost a tradition to fake and build up broken franklinite crystals in matrix! Luckily, this one survived and was never played with. It probably dates to older workings in the late 1800s to early 1900s, and is not recently found.


07edd26bc - Emerald on Calcite - SOLD
Las Penas, near Cosquez, Boyaca Dept, Colombia

miniature, 5.1 x 3.6 x 2.6 cm
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ex.  Dr. Edward David

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Emerald on Calcite from Las Penas, near Cosquez, Boyaca Dept, Colombia [db_pics/pics/07edd26bca.jpg]
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Emerald on Calcite from Las Penas, near Cosquez, Boyaca Dept, Colombia [db_pics/pics/07edd26bcb.jpg]

This is a most unusual emerald specimen, featuring dark green crystals in narrow stairstep growth , one upon and reachng out from the next, extending elegantly out from a well trimmed matrix! I have never seen the like! This is not a major gem emerald perhaps, but is really a special piece because it so draws the eye with the combination of color and sculptural aesthetics. It is as impactful as an emerald miniature could be, aside from a gem crystal of much higher price point. NOTE : there is ONE CLEAN REPAIR to this specimen, in the middle of the cluster. It is hard to notice and I am sure that Ed himself never realized it.


30eddx2 - Barite on Calcite - SOLD
Elk Creek, Meade County, South Dakota, USA

cabinet, 11.8 x 10.9 x 7.6 cm
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ex.  Dr. Edward David

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Barite on Calcite from Elk Creek, Meade County, South Dakota, USA [db_pics/pics/30eddx2a.jpg]
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Barite on Calcite from Elk Creek, Meade County, South Dakota, USA [db_pics/pics/30eddx2b.jpg]
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Barite on Calcite from Elk Creek, Meade County, South Dakota, USA [db_pics/pics/30eddx2c.jpg]

This large specimen features a stunning 9 x 2.5 x 2 cm crystal on matrix...3.5 inches tall, rising straight up like a rocket! The crystal has the best deep color and gemminess that you can ask for, and is razor sharp and pristine. Unlike most barites from this locality which tend to lose the sharp terminations with size, this retains a perfectly sharp point, with lustre. Many gain matted faces, for some reason I have never heard explained. But again, this crystal has not only the sharp termination but retains the glassy faces even at the tip. It is a superior calibre, even alone; and the crystal is perched on contrasting calcite crystals as well, which adds to the aesthetics. Comes with custom base. I should also add that this piece, along with other similarly notable pieces from other famous collections, will be in the Tucson 2008 tribute case to the locality.


3D28 - Cerussite (red), Malachite & Calcite - $ 900
Tsumeb, Namibia

thumbnail, 2.8 x 2.4 x 2.2 cm
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ex.  Marilyn Dodge

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Cerussite (red), Malachite & Calcite from Tsumeb, Namibia [db_pics/pics/3d28a.jpg]
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Cerussite (red), Malachite & Calcite from Tsumeb, Namibia [db_pics/pics/3d28b.jpg]
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Cerussite (red), Malachite & Calcite from Tsumeb, Namibia [db_pics/pics/3d28c.jpg]
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Cerussite (red), Malachite & Calcite from Tsumeb, Namibia [db_pics/pics/3d28d.jpg]

Excellent example of this rare form of Cerussite! The red color is due to microscopic inclusions of chalcotrichite. THis pocket was hit a LONG time ago now and just once, over 30 years back. They are extreemly hard to obtain and NEVER have I seen a red ceru admixed with such a nice assemblage of associated minerals as we have here. The Cerussites are very sharp, have good luster, and the largest is about 1.2 cm! They are very nicely accented by the Malachite and Calcite. Important thumbnail piece!


3D32 - Manganoan Calcite - SOLD
Magma Mine, Superior, Pinal County, Arizona, USA

thumbnail, 3.6 x 3 x 1.6 cm
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ex.  Marilyn Dodge

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Manganoan Calcite from Magma Mine, Superior, Pinal County, Arizona, USA [db_pics/pics/3d32a.jpg]
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Manganoan Calcite from Magma Mine, Superior, Pinal County, Arizona, USA [db_pics/pics/3d32b.jpg]

Stunning set of what appear to be intergrown clusters of scalenohedron Calcites interspersed on matrix. The Calcites, which are up to 1.4 cm!, have superb luster and translucence, and the overall quality and aesthetics of this is exceptional. A killer.


3D47 - Calcite (ex. Neeld) - SOLD
Egremont, Cumbria, England

miniature, 3.3 x 2.2 x 1.6 cm
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ex.  Marilyn Dodge

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Calcite (ex. Neeld) from Egremont, Cumbria, England [db_pics/pics/3d47a.jpg]
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Calcite (ex. Neeld) from Egremont, Cumbria, England [db_pics/pics/3d47b.jpg]

This is really quite remarkable. The good luster and attractive pearly translucence would add to the quality of any calcite, but the form of this crystal is what really makes it special. This specimen is really a stack of poker chips that are all miniatures of the sceptered termination. As I said, quite remarkable – and better in person! From the 19th-century collection of Colonel Joseph Neeld.


3D70 - Dioptase on Calcite - SOLD
Tsumeb, Otjikoto Region, Namibia

miniature, 3.6 x 2 x 1.2 cm
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ex.  Marilyn Dodge

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Dioptase on Calcite from Tsumeb, Otjikoto Region, Namibia [db_pics/pics/3d70a.jpg]
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Dioptase on Calcite from Tsumeb, Otjikoto Region, Namibia [db_pics/pics/3d70b.jpg]
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Dioptase on Calcite from Tsumeb, Otjikoto Region, Namibia [db_pics/pics/3d70c.jpg]

Gemmy 1 mm Dioptases spread liberally on a matrix of sharp .6 cm white Calcite Rhombs. Classic Tsumeb all the way, and getting harder to find!


3D75 - Copper in Calcite (ex. Brown Univ.) - SOLD
Houghton County, Michigan, USA

thumbnail, 1.8 x 1.5 x 1.2 cm
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ex.  Marilyn Dodge

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Copper in Calcite (ex. Brown Univ.) from Houghton County, Michigan, USA [db_pics/pics/3d75a.jpg]
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Copper in Calcite (ex. Brown Univ.) from Houghton County, Michigan, USA [db_pics/pics/3d75b.jpg]
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Copper in Calcite (ex. Brown Univ.) from Houghton County, Michigan, USA [db_pics/pics/3d75c.jpg]

Intergrown Copper and Calcite that this region is so noted for. The presentation side had good clarity and superb striations in the Calcite, but the back is unusual for its Copper intergrown with sharp scalenohedron Calcite faces. Nice thumb, and actually better in person yet.


4JB12-LC70 - Calcite on Quartz - SOLD
St. Andreasberg, Harz Mtns., Germany

small cabinet, 8.5 x 6.5 x 3.3 cm
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Calcite on Quartz from St. Andreasberg, Harz Mtns., Germany [db_pics/pics/4jb12-lc70a.jpg]
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Calcite on Quartz from St. Andreasberg, Harz Mtns., Germany [db_pics/pics/4jb12-lc70b.jpg]
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Calcite on Quartz from St. Andreasberg, Harz Mtns., Germany [db_pics/pics/4jb12-lc70c.jpg]

Old (1936) twinned nailhead Calcite on a matrix of multi-generational quartz sprinkled with Chalcopyrites. An important piece from a classic locality for the serious Calcite collector. The striated faces have good vitreous luster, and only very minor wear in just a few spots.


4JD22 - Sodalite in Calcite - SOLD
Sar-E-Sang, Badakshan Valley, Laghman Province, Afghanistan

miniature, 4.7 x 4.4 x 2.4 cm
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Quite simply one of the sharpest crystals of the species I have ever seen, with super-smooth and well-formed faces showing none of the typical curvature or pitting we so often see on these crystals! It has uniform RICH BLUE COLOR to it and is better in person.


4JD38 - Calcite (fluor.) on Ilvaite - SOLD
Dal'negorsk, Primorskiy Kray, Russia

miniature, 3.6 x 3.3 x 2.9 cm
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Four beautiful and different calcite crystals perched very aesthetically on a plate of glistening Ilvaite. The largest calcite is twinned, and all have a light orange fluorescence. Calcites this lovely and this reasonable are hard to find. Like little jewels!!!


4JD44 - Cobaltian Calcite - SOLD
Dikiluwe Mine, Kolwezi, Shaba Province, Zaire

thumbnail, 3.2 x 1.7 x 1.2 cm
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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.


4ZAG4 - Quartz pseudomorph after Calcite - SOLD
Jalgaon, Maharashtra, India

large cabinet, 27.0 x 7.1 x 10.0 cm
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Quartz pseudomorph after Calcite from Jalgaon, Maharashtra, India [db_pics/pics/4zag4a.jpg]
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Quartz pseudomorph after Calcite from Jalgaon, Maharashtra, India [db_pics/pics/4zag4b.jpg]

So far, this is a unique specimen from the find which also produced twinned crystals (below), and it showcases a COMPLETE-ALL-AROUND scalenohedral calcite measureing a whopping 14 x 7 x 7 cm, replaced by quartz! NO DAMAGE, COMPLETE, PRISTINE....it is a miracle this beast came out intact! It is an incredibly impressive (and large) specimen in person. Interestingly, there are oriented brown lines along the edges of the original calcite crystal (which seems to have actually been a twinned scaleno, now i think on it), and somehow these lines of color faithfullypreserve the original edges of the calcite, though they are ALSO quartz. I don't understand how we got this bicolor, oriented effect, but there it is....and luckily, as it makes for a more dramatic and unique specimen! I cannot rave about this one enough...


65S - Calcite with Fluorite - $ 2000
Denton Mine, Cave-in-Rock, Hardin County, Illinois, USA

cabinet, 12.1 x 7.1 x 5.1 cm
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ex.  Dr. Edward David

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Calcite with Fluorite from Denton Mine, Cave-in-Rock, Hardin County, Illinois, USA [db_pics/pics/65sa.jpg]
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Calcite with Fluorite from Denton Mine, Cave-in-Rock, Hardin County, Illinois, USA [db_pics/pics/65sb.jpg]

A large crystal of gemmy, doubly-terminated, golden calcite measuring a whopping 11.0 cm across contrasts beautifully with its matrix of deep lavender, translucent, fluorite. This is certainly one of the largest and gemmiest of the style I have seen from the mine, which is now defunct as is the rest of the old fluorspar district here. The piece is really striking, in person, and has a pronoucned internal lustre to it.


AGAU-37 - Silver on Calcite - $ 4800 SOLD
New Nevada Mine, Batopilas, Chihuahua, Mexico

small cabinet, 6.0 x 4.1 x 1.9 cm
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ex.  Steve Sinotte and Rebecca Stewart

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Silver on Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/new2012/MAR1137a.jpg]
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Silver on Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/new2012/MAR1137b.jpg]
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Silver on Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/new2012/MAR1137d.jpg]
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Silver on Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/new2012/MAR1137e.jpg]

This specimen is one of the most elegant examples I have seen in a long time, from the famous early 1980s finds at the New Nevada Mine in the old Batopilas silver District. These specimens were brought to market by John Whitmire at the time. Steven Sinotte was a collector and part-time dealer at the old Desert Inn when they came out, and obtained this for his collection in the early picks. It is elegantly balanced, on just the right amount of calcite matrix pedestal. It shows a CLASSIC, and very fine, herringbone pattern of crystallized spinel-twinned silver crystals interlinked with one another. The crystal cluster is robust, not fragile and "bendy" as are so many from these finds (particularly from silvers found a few years later). This specimen was pictured in the Mineralogical Record article on the find, in 1982: Mineralogical Record vol 12, May-June, page 178, figure 6. It has remained in his collection, and that of his wife, noted glassmaker Rebecca Stewart, ever since a few weeks after it was mined in the early 1980s. Comes with a lucite base for custom display



(click on a page number to go to that page:)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108
109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
199 200 201 202 203 204 205 206 207 208

 page 1 / 208  -  3120 specimens selected  -  next



Rob Lavinsky, rob@irocks.com

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