Mineral Specimens with Calcite

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MD-174200 - Dioptase, Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
miniature, 4 x 4 x 2 cm.
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Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174200a.jpg]

4 x 4 x 2 cm. A colorful specimen with deep green dioptase inclusions twinkling inside clear calcite rhombohedra. The inclusions are, unusually, oriented along several planes of the crystal such that they leave a colorless rim of clear calcite around the included areas, except the center of some upper crystal faces where the inclusions do surface. Ex. Willy Israel Collection.

MD-174201 - Dioptase, Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
miniature, 5 x 3.5 x 2.5 cm.
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Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174201a.jpg]		CLICK HERE FOR LARGER IMAGE:
Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174201b.jpg]

5 x 3.5 x 2.5 cm. A colorful specimen with deep green dioptase inclusions twinkling inside clear calcite rhombohedra. This specimen is more richly included than the others above, so much so that it looks like a carpet of sparkling dioptase spreading out from the calcites, rather than included in them! A few tiny yellow spots may be micro-wulfenite crystals in association or included at the edge of one of the calcites. Ex. Willy Israel Collection.

MD-174203 - Malachite, Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
miniature, 4 x 3.5 x 1.75 cm.
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Malachite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174203a.jpg]		CLICK HERE FOR LARGER IMAGE:
Malachite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174203b.jpg]

4 x 3.5 x 1.75 cm. Bright electric-green, velvety malachite balls perched on sparkling calcite that has formed as a secondary-generation negative cast after large calcite rhombohedra, now mysteriously gone! Ex. Willy Israel Collection.

MD-174205 - Cuprite (Var: Chalcotrichite), Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
miniature, 4 x 3 x 1.75 cm.
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Cuprite (Var: Chalcotrichite), Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174205a.jpg]		CLICK HERE FOR LARGER IMAGE:
Cuprite (Var: Chalcotrichite), Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174205b.jpg]

4 x 3 x 1.75 cm. Rich red inclusions of chalcotrichite completely fill these calcite rhombohedra with a most unusual color! Ex. Willy Israel Collection.

MD-174226 - Goethite, Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
cabinet, 12.0 x 8.7 x 5.3 cm.
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Goethite, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174226a.jpg]

12.0 x 8.7 x 5.3 cm. This piece features lustrous Goethite in silky-smooth drapery over Calcite rhombohedra, all perched against contrasting matrix of another generation of calcite. The coatings are so sharp, in fact, that the crystal edges of the Calcites below can be clearly followed. Ex. Willy Israel Collection.

MD-174229 - Dioptase, Calcite - - Archived
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
small cabinet, 7.9 x 4.5 x 3.7 cm.
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Dioptase, Calcite from Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia [db_pics/mdpics/MD-174229a.jpg]

7.9 x 4.5 x 3.7 cm. Large (up to .8 cm) lustrous dioptase crystals with good clarity generously spread out over a coating of clear glassy calcite crystals. Ex. Willy Israel Collection.

MD-174232 - Nchwaningite, Calcite - - Archived
N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa
thumbnail, 1.7 x 1.3 x 0.4 cm.
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Nchwaningite, Calcite from N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa [db_pics/mdpics/MD-174232a.jpg]

1.7 x 1.3 x 0.4 cm. Both important and attractive, this combination thumbnail has two well-formed, quality Calcites and several good sprays of Nchwaningite. Ex. Willy Israel and Pieter De Bruyn Collection.

MD-174405 - Calcite, Marcasite - - Archived
Linwood Mine, Buffalo, Scott Co., Iowa, USA
small cabinet, 8.9 x 8.4 x 4.4 cm.
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Calcite, Marcasite from Linwood Mine, Buffalo, Scott Co., Iowa, USA [db_pics/mdpics/MD-174405a.jpg]

8.9 x 8.4 x 4.4 cm. There is a whole field of dozens and dozens of these little diamond-bright calcite modified rhombs. Beneath and included inside the crystals, and in a field at one end of the specimen, is sparkly marcasite. Old classic material from the 1970s.

MD-174406 - Calcite - - Archived
Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA
small cabinet, 7.5 x 3.3 x 2.9 cm.
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Calcite from Sweetwater Mine (Milliken Mine; Frank R. Milliken; Blair Creek; Ozark Lead Company Mine; Adair Creek; Logan Creek), Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA [db_pics/mdpics/MD-174406a.jpg]

7.5 x 3.3 x 2.9 cm. This Missouri calcite is more transparent, with light golden internal scintillations. It has textbook form and is complete all around, with a bit of accenting matrix. It has a little cap on top of chalcopyrite with little calcites. Ex. George Feist Collection.

MD-174420 - Calcite - - Archived
Mid-Continent Mine, Treece, Picher Field, Tri-State District, Cherokee Co., Kansas, USA
small cabinet, 8.9 x 6.1 x 5.7 cm.
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Calcite from Mid-Continent Mine, Treece, Picher Field, Tri-State District, Cherokee Co., Kansas, USA [db_pics/mdpics/MD-174420a.jpg]

8.9 x 6.1 x 5.7 cm. There are two completely different forms of calcite here on the same specimen - and the lone scalenohedral crystal happens to have one of the other form (gemmy, light champagne color) growing on its termination! Ex. Feist Collection.

MD-174442 - Calcite - - Archived
Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA
small cabinet, 5.9 x 4.9 x 3.9 cm.
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Calcite from Rucks Pit, Fort Drum, Okeechobee Co., Florida, USA [db_pics/mdpics/MD-174442a.jpg]

5.9 x 4.9 x 3.9 cm. This fascinating specimen formed when gemmy calcite crystals grew in the natural pocket formed by a buried fossil clamshell. The interior of the shell is now completely covered with these fine, golden crystals.

MD-174540 - Calcite - - Archived
Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
small cabinet, 6.9 x 5.4 x 4.8 cm.
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Calcite from Southwest Mine, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA [db_pics/mdpics/MD-174540a.jpg]

6.9 x 5.4 x 4.8 cm. A beautiful specimen of calcite from the most classic of American localities, Bisbee, featuring balls of sparkly, light cream-colored crystals. Ex. Dave Stoudt Collection.

MD-174547 - Calcite - - Archived
Jalgaon District, Maharashtra, India
large cabinet, 17.9 x 11.9 x 4.8 cm.
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Calcite from Jalgaon District, Maharashtra, India [db_pics/mdpics/MD-174547a.jpg]

17.9 x 11.9 x 4.8 cm. This vug has been cut intact out of the host rock, preserving in pristine condition a half-dozen razor-sharp, transparent crystals of calcite to 2.2 cm on edge.

MD-174561 - Orpiment, Calcite - - Archived
Jiepaiyu Mine (Shimen Mine), Shimen As-(Au) deposit, Shimen Co., Changde Prefecture, Hunan Province, China
small cabinet, 7.6 x 4.1 x 3.4 cm.
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Orpiment, Calcite from Jiepaiyu Mine (Shimen Mine), Shimen As-(Au) deposit, Shimen Co., Changde Prefecture, Hunan Province, China [db_pics/mdpics/MD-174561a.jpg]

7.6 x 4.1 x 3.4 cm. These Chinese orpiments are actually gemmy and superb. These gemmy crystals, in addition, are intergrown with contrasting white calcite. The elongated crystals, bright and transparent, measure to one centimeter.

MD-174568 - Chabazite-Ca, Quartz, Calcite - - Archived
Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA
cabinet, 10.5 x 6.5 x 2.5 cm.
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Chabazite-Ca, Quartz, Calcite from Upper New Street Quarry (Burger's Quarry), Paterson, Passaic Co., New Jersey, USA [db_pics/mdpics/MD-174568a.jpg]

10.5 x 6.5 x 2.5 cm. A fine chabazite plate from the famous Upper New Street Quarry of Paterson, New Jersey. Large for the locality, up to 9 mm, lustrous, tan chabazite rhombs are richly and aesthetically scattered on a flat-lying vug covered with sparkly micro quartz crystals and accented with lustrous, colorless calcite rhombs. Collected in 2007.


(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

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Rob Lavinsky, rob@irocks.com

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