Mineral Specimens with Calcite

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ES142 - Calcite and Quartz with Ilvaite - SOLD
Bor Mine, Dalnegorsk, Russia

small cabinet, 6.5 x 4.6 x 2.7 cm
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ex.  Ernie Schlichter

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Calcite and Quartz with Ilvaite from Bor Mine, Dalnegorsk, Russia [db_pics/pics/es142a.jpg]
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Calcite and Quartz with Ilvaite from Bor Mine, Dalnegorsk, Russia [db_pics/pics/es142b.jpg]
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Calcite and Quartz with Ilvaite from Bor Mine, Dalnegorsk, Russia [db_pics/pics/es142c.jpg]

This unusual combination specimen features clusters of 1-cm crystals of white calcite and colorless quartz contrasting with several splendent, black, ilvaite crystals to about 1 inch. All of this sits on a matrix of massive hedenbergite (sawed flat on the bottom to stand). All of the upright, major ilvaite crystals are fully and magnificently terminated, with the only damage confined to the periphery and thus to the less significant sideways-pointing crystals at the base. Ilvaites of this quality came out richly in the late 80s and the 90s but have since completely evaporated from teh market. Now a Russian classic!


ES3 - Calcite with Hematite inclusions - SOLD
Santa Eulalia, Chihuahua, Mexico

cabinet, 11 x 6.7 x 4.9 cm
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ex.  Ernie Schlichter

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Calcite with Hematite inclusions from Santa Eulalia, Chihuahua, Mexico [db_pics/pics/es3a.jpg]
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Calcite with Hematite inclusions from Santa Eulalia, Chihuahua, Mexico [db_pics/pics/es3b.jpg]

Looking very much like cactus growth, this ELEGANT calcite specimen features translucent, hematite included crystals to 7 cm in length. In addition, the piece exhibits chocolate brown color and the high luster that make the find unique. Old material, from the late 1980s - I remember as i owned one when i was a kid and they were coming out.


ES98 - Silver and Calcite - $ 3000
New Nevada Mine, Batopilas, Chihuahua, Mexico

small cabinet, 9.6 x 2.6 x 0.5 cm
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ex.  Ernie Schlichter

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Silver and Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/pics/es98a.jpg]
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Silver and Calcite from New Nevada Mine, Batopilas, Chihuahua, Mexico [db_pics/pics/es98b.jpg]

Herringbone-style silver from Batopilas is one of the classic examples of crystallized silver in collections. They form from intergrown, sharply elongated spinel twins, connected together. When these silver specimen were plentiful in the late 1970’s, this would still have been a quality piece with unique aesthetics. Today, they are much harder to find and large specimens in particular are uncommon on the market though little cheapies still trickle in from time to time. The specimen is capped off by two 8 cm vertical crystals - that is 3 inches of crysatllized, spinel-twinned silver!


ETTR-1038 - Ettringite with Hematite and Calcite - $ 4000 SOLD
Nchwaning Mines, Kalahari Fields, South Africa

small cabinet, 9 x 7.5 x 3 cm
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Ettringite with Hematite and Calcite from Nchwaning Mines, Kalahari Fields, South Africa [db_pics/new2010/Ettringite-Kalahari-Namibia-95mm_0642.jpg]
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Ettringite with Hematite and Calcite from Nchwaning Mines, Kalahari Fields, South Africa [db_pics/new2010/Ettringite-Kalahari-Namibia-95mm_0634.jpg]

Only a very few specimens in this pocket seem to have caught the nearby hematite crystals, and come out in association. This piece is dramatic! It features a doubly-terminated 4.4-cm crystal, inset with a small cluster of glistening jet black hausmannite, ON the hematite-covered plate. On the other side, it is covered by soft white oyelite, so either side offers great contrast for the display of the specimen. The hematites, to 1.7 cm, are mirror-bright, so shiny and reflective you can shave in them. This is a unique piece from a unique pocket, with singular aesthetics.


FC13 - Calcite - $ 950
Tsumeb, Namibia

cabinet, 10.1 x 7 x 5 cm
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ex.  James and Marjorie Ferguson

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Calcite from Tsumeb, Namibia [db_pics/pics/fc13a.jpg]
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Calcite from Tsumeb, Namibia [db_pics/pics/fc13b.jpg]

A really dramatic large piece of classic Tsumeb stacked rhombohedra! They ar elightly speckled with a black mineral I forget the name of, but it occurs often with this habit. The complex, stacked visual effect of the crystals is classic for Tsumeb!


FC14 - Cuprian Calcite - SOLD
Tsumeb, Namibia

cabinet, 13.5 x 6 x 4 cm
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ex.  James and Marjorie Ferguson

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Cuprian Calcite from Tsumeb, Namibia [db_pics/pics/fc14a.jpg]

We call this the "ice cream" pocket for obvious reasons. This is a VERY choice specimen from this one famous pocket of calcite with included copper, that gives it a wonderful pastel green hue unique to my knowledge. The surface looks like sugar, brilliant and sparkly ! This is not a true species per se, but rather a varietal of calcite. Nevertheless, it is unusual stuff from a one-time find , and extremely attractive in any case. They glitter like you won't believe. This is a large one! I am told these came out in the mid-1980s


FC15 - Cobaltian Dolomite cast after Calcite - SOLD
Tsumeb, Namibia

small cabinet, 8.8 x 7.6 x 1 cm
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ex.  James and Marjorie Ferguson

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Cobaltian Dolomite cast after Calcite from Tsumeb, Namibia [db_pics/pics/fc15a.jpg]
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Cobaltian Dolomite cast after Calcite from Tsumeb, Namibia [db_pics/pics/fc15b.jpg]

This oddball is a cast formed as a thin layer of (sturdy!) cobaltian dolomite coated an existing plate of rhombohedral calcite crystals. The calcites then dissolved away, leaving this cast plate with both positive and negative sides showing!


FC2 - Calcite with Hematite - SOLD
Tsumeb, Namibia

small cabinet, 7.5 x 6.3 x 4.3 cm
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ex.  James and Marjorie Ferguson

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Calcite with Hematite from Tsumeb, Namibia [db_pics/pics/fc2a.jpg]
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Calcite with Hematite from Tsumeb, Namibia [db_pics/pics/fc2b.jpg]

A gorgeous radial cluster of traditional Tsumeby-style rhombohedra, that are almost curved with extra faces, and attractively dusted by included specks of red hematite grains. Good lustre, excellent transparency into the crystals, and overall just VERY PRETTY! and, unique to Tsumeb


FC21 - Calcite on Malachite - SOLD
Tsumeb, Namibia

miniature, 3.5 x 3.1 x 1.9 cm
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ex.  James and Marjorie Ferguson

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Calcite on Malachite from Tsumeb, Namibia [db_pics/pics/fc21a.jpg]

A supremely aesthetic and unusual Tsumeb piece with a perfect rosette of calcite, complete, perched nicely on primary malachite crystals! In person, the deep green of the malachite is more readily apparent


FC28 - Dioptase on Calcite rhombohedra - $ 1750
Tsumeb, Namibia

miniature, 3.6 x 2.2 x 1.7 cm
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ex.  James and Marjorie Ferguson

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Dioptase on Calcite rhombohedra from Tsumeb, Namibia [db_pics/pics/fc28a.jpg]
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Dioptase on Calcite rhombohedra from Tsumeb, Namibia [db_pics/pics/fc28b.jpg]

A gorgeous miniature dioptas,e that doesn't break the bank: this specimen features a main crystal 1.7 cm long and 1 cm thick! It has TOP color, lustre, and is just much better in person than it appears, as with all dioptase in photos.


FC3 - Calcite on Mottramite - SOLD
Tsumeb, Namibia

small cabinet, 6.9 x 6.2 x 3.8 cm
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ex.  James and Marjorie Ferguson

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Calcite on Mottramite from Tsumeb, Namibia [db_pics/pics/fc3a.jpg]
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Calcite on Mottramite from Tsumeb, Namibia [db_pics/pics/fc3b.jpg]

A really beautiful calcite because of the clarity of the water-clear calcite on top of the green mottramite-coated matrix. It is stunning! The smaller calcite, in front, is 3 cm across. It has minor edge wear on the bottom but this does not detract at all , visually. The upper crystal shooting up from teh top of the piece is to 3 cm on edge, or 4.5 cm across longways. It is complete on the front and all around the sides, contacted slightly on the backside only. This piece is in incredible display piece and shows off dramatically - MUCH better in person.


FC30 - Dioptase on Calcite rhombohedron - SOLD
Tsumeb, Namibia

thumbnail, 2.5 x 1.9 x 1.4 cm
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ex.  James and Marjorie Ferguson

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Dioptase on Calcite rhombohedron from Tsumeb, Namibia [db_pics/pics/fc30a.jpg]
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Dioptase on Calcite rhombohedron from Tsumeb, Namibia [db_pics/pics/fc30b.jpg]

A very cute toenail-sized specimen featuring a perfect, sharp, gemmy, lustrous dioptase perched atop a complete calcite rhomb! Stunning contrast!


flu22 - Calcite on Sphalerite with Fluorite - SOLD
Gibraltar Mine, Naica, Chihuahua, Mexico

cabinet, 10.6 x 8.0 x 5.5 cm
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Calcite on Sphalerite with Fluorite from Gibraltar Mine, Naica, Chihuahua, Mexico [db_pics/pics/flu22a.jpg]
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Calcite on Sphalerite with Fluorite from Gibraltar Mine, Naica, Chihuahua, Mexico [db_pics/pics/flu22b.jpg]

A beautiful combo piece of bright white calcite covered with a second generation of sparklier , minutely-crystallized calcite, perched on bright jet-black sphalerite crystals. VERY sparkly and colorful overall for a black-and-white piece. Small, gemmy, transparent cuboctohedral 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.


flu28 - Fluorite with Calcite - SOLD
Gibraltar Mine, Naica, Chihuahua, Mexico

cabinet, 10.0 x 9.3 x 8.7 cm
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Fluorite with Calcite from Gibraltar Mine, Naica, Chihuahua, Mexico [db_pics/pics/flu28a.jpg]

This unusual Naica piece is more starkly octohedral than others you normally see from the locale. It is actually the only OLDER specimen slipped into this update of newer material. It dates from , probably, the early 1980s. The piece has two large octos in the middle, coated in front by a blanket of dogtooth calcites. The contrast is very nice! The octos have SLIGHT cubic modifications, you can see, at their very tips. But they are still more octo than cube by far and as such are the exception at Naica.


GEM7-48 - Calcite (floater) - SOLD
Bigrigg Mne, Egremont, Cumberland, England

small cabinet, 6.7 x 2.5 x 1.8 cm
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Calcite (floater) from Bigrigg Mne, Egremont, Cumberland, England [db_pics/pics/gem7-48a.jpg]
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Calcite (floater) from Bigrigg Mne, Egremont, Cumberland, England [db_pics/pics/gem7-48b.jpg]

This is an elegant cluster of floating calcites with incredibly glassy lustre, from the mid-to-late 1800s mining at Egremont for iron. It is complete all around and has very sculptural aesthetics, making this among my favorites for the size and price range that I have seen for the material. This has long been in the collection of my friend here in Dallas, Wally Mann. It look slike a smaller version to the famous example from the same region that Bill Larson has used in advertising for his business, for decades. I traded this from Wally for my own collection some years ago.



(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 15 / 208  -  prev  -  3120 specimens selected  -  next



Rob Lavinsky, rob@irocks.com

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