Mineral Specimens with Quartz

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MD-61202 - Pyrite, Marcasite, Calcite, Dolomite, Quartz - - Archived
Nanisivik Mine, Nanisivik, Baffin Island, Nunavut Territory, Canada

thumbnail, 1.8 cm
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Pyrite, Marcasite, Calcite, Dolomite, Quartz from Nanisivik Mine, Nanisivik, Baffin Island, Nunavut Territory, Canada [db_pics/mdpics/MD-61202a.jpg]

A DRAMATIC and SIGNIFICANT LARGE CABINET combination piece from the famous Nanisivik Mine, above the Arctic Circle on Baffin Island, North West Territory, Canada. Most of the specimen and matrix consists of sparkly, brassy pyrite blades pseudomorphing marcasite. Aesthetically scattered are lustrous, doubly terminated, amber calcite crystals to 1.8 cm, clusters of lustrous, chalcopyrite-speckled, gray dolomite rhombs, and transparent, water-clear, doubly terminated quartz crystals to 5.8 cm. Scattered periphery damage is trivial, for such a large piece. The Nanisivik Mine is one of the highest latitude and coldest underground mines in the world. 15.3 x 11.5 x 7.0 cm


MD-61211 - Apatite-(CaF), Siderite, Quartz - - Archived
Panasqueira Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal

thumbnail, 1.2 cm
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Apatite-(CaF), Siderite, Quartz from Panasqueira Mines, Panasqueira, Covilhã, Castelo Branco District, Portugal [db_pics/mdpics/MD-61211a.jpg]

Three, gem, water-clear at the terminations to faintly green and purple at the centers, apatite crystals to 1.2 cm rest on a matrix of lustrous zoned, hexagonal siderite crystals to 0.9 cm. The 1.7 cm, lustrous and transparent quartz crystal at the top. Smale Collection. 5.2 x 4.5 x 2.3 cm


MD-61220 - Fluorite, Quartz - - Archived
Mahodari, Nasik District, Maharashtra, India

thumbnail, 1.0 cm
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Fluorite, Quartz from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-61220a.jpg]

An aesthetic and showy specimen of a 1.0 cm, matte-finish, blood-red fluorite ball perched on the apex of a ball of transparent to translucent, frosted, gray-green quartz crystals on a small bit of basalt matrix from the several year old, one-tiime find at the Mahodari Quarry in India. The specimen can be rotated, so that the trivial contacting and a trivial termination bruise on adjacent quartz crystals to the fluorite ball are not visible. This would be a very fine specimen, without any damage. 6.7 x 6.0 x 4.5 cm


MD-61229 - Rhodochrosite, Rhodochrosite, Quartz - - Archived
Kerch peninsula (Kertch peninsula), Crimea peninsula, Crimea Oblast', Ukraine

cabinet, 11 x 10 x 6 cm.
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Rhodochrosite, Rhodochrosite, Quartz from Kerch peninsula (Kertch peninsula), Crimea peninsula, Crimea Oblast', Ukraine [db_pics/mdpics/MD-61229a.jpg]
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Rhodochrosite, Rhodochrosite, Quartz from Kerch peninsula (Kertch peninsula), Crimea peninsula, Crimea Oblast', Ukraine [db_pics/mdpics/MD-61229b.jpg]

11 x 10 x 6 cm. This shell has been entirely replaced by light pink rhodochrosite. When you peer into its interior, you can see it’s like a little pink cave inside. This is an 11 x 10 x 6 cm specimen with a rhodochrosite-replaced clam so big that inside of it there are numerous others. This is a phosphate mining district where they are now through the fossil-bearing zone, and so no more have come out in years, of this quality.


MD-61259 - Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst) - - Archived
Brandberg area, Brandberg District, Erongo Region, Namibia

miniature, 3.8 x 2.8 x 1.5 cm
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Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst) from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-61259a.jpg]

An AESTHETIC and pristine, floater combination quartz specimen from Brandberg, Namibia. A "rocket ship", very glassy, doubly terminated, smoky quartz crystal has several "fins" of amethyst and smoky quartz crystals projecting out of the tail section of the ship. 3.8 x 2.8 x 1.5 cm


MD-61264 - Galena, Calcite, Quartz - - Archived
Krushev dol deposit, Krushev dol mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria

cabinet, 12.4 x 8.4 x 6.7cm
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Galena, Calcite, Quartz from Krushev dol deposit, Krushev dol mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria [db_pics/mdpics/MD-61264a.jpg]

A LARGE and very impressive Eastern European galena specimen, MUCH more impressive in person, in that you have a compound cluster of galena with staggere, stepped growth all along the sides, so that it just shimmers. But more than that, the galena cluster is nestled in a bed of small, translucent poker-chip calcites that wrap around its edges, which have grown atop silky quartz crystals -making this piece truly exceptional. 12.4 x 8.4 x 6.7cm


MD-61268 - Sphalerite, Quartz - - Archived
Karaaliev dol deposit, Angel Yanakiev Mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria

small cabinet, 6.2 x 5.4 x 5.0cm
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Sphalerite, Quartz from Karaaliev dol deposit, Angel Yanakiev Mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria [db_pics/mdpics/MD-61268a.jpg]

Another fine Eastern Euro specimen, featuring a cluster of finely-formed sphalerite crystals accented by frosted quartz crystals, which stick out from all sides of the matrix. 6.2 x 5.4 x 5.0cm


MD-61269 - Fluorite, Quartz - - Archived
Mahodari, Nasik District, Maharashtra, India

thumbnail, 1.8 cm
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Fluorite, Quartz from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-61269a.jpg]

This striking specimen consists of the slightly concave side of a quartz-lined pocket with a 1.8 cm ball of red fluorite (tinted by hematite) unique to this find, with another smaller ball hiding nearby. There is also a little quartz stalactite beside the fluorite balls (you are viewing it from the top - from the side, it has a hook shape). These are a really unique form and color for fluorite, similar in form at least to the yellow Indian fluorite balls that look like eggs. 10.0 x 8.8 x 2.9cm


MD-61272 - Quartz - - Archived
Shingle Springs Mine (Docs Mine), El Dorado Co., California, USA

miniature, 3.2 x 3.2 x 2.2cm
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Quartz from Shingle Springs Mine (Docs Mine), El Dorado Co., California, USA [db_pics/mdpics/MD-61272a.jpg]

Much more familiar from Arkansas and Russia, but NOT from California - this is a specimen of chlorite-included quartz - in this case, the chlorite has coated an earlier generation of crystal growth, creating green phantoms inside the clear quartz. 3.2 x 3.2 x 2.2cm


MD-61276 - Quartz (Var: Amethyst) - - Archived
Ayoreita mine, La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia

large cabinet, 15.5 x 8.8 x 6.5cm
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Quartz (Var: Amethyst) from Ayoreita mine, La Gaiba District, Sandoval Province, Santa Cruz Department, Bolivia [db_pics/mdpics/MD-61276a.jpg]

A fine, whopper amethyst crystal, complete all around with NO damage, with the deep purple tip characteristic of top-quality Bolivian material. This crystal has a pretty, double-peaked termination. WEIGHS 970 grams! 15.5 x 8.8 x 6.5cm


MD-61294 - Rhodochrosite, Quartz - - Archived
Sunnyside Mine (American Tunnel; Mogul Mine; Washington Mine; Belle Creole; Gold Prince; Brenneman Mine; Sunnyside Mine Group), Howardsville, Silverton District, San Juan Co., Colo

thumbnail, 2.2 x 1.8 x 1.4cm
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Rhodochrosite, Quartz from Sunnyside Mine (American Tunnel; Mogul Mine; Washington Mine; Belle Creole; Gold Prince; Brenneman Mine; Sunnyside Mine Group), Howardsville, Silverton District, San Juan Co., Colo [db_pics/mdpics/MD-61294a.jpg]

One of two Sunnyside rhodos in this set of auctions, this one on the opposite extreme size-wise. Very nicely-formed crystals on this thumber. Sunnyside rhodos are very hard to get these days! 2.2 x 1.8 x 1.4cm


MD-61300 - Quartz - - Archived
Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia

miniature, 3.5 x 2.4 x 1.3cm
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Quartz from Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia [db_pics/mdpics/MD-61300a.jpg]

A fine Russian mini Japan-law twin quartz; both crystals are complete and terminated. 3.5 x 2.4 x 1.3cm


MD-61345 - Calcite, Quartz (Var: Amethyst) - - Archived
Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil

cabinet, 12.6 x 12.2 x 6.6cm
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Calcite, Quartz (Var: Amethyst) from Iraí, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-61345a.jpg]

Irai was known for these unique calcites, and then the supply seemed to dry up. There were hardly any available at the last year''s Tucson show, and they were overpriced, so we bought none. Then, to our surprise, we found a cache of new specimens with one dealer at the small Spring Denver Show last year, and cherry-picked all the best ones, and sold them. Then they disappeared again - until finally, a contact brought us the only specimens we saw at this year''s Tucson Show, and we bought the entire lot - the good, the bad and the ugly - in order to get the good ones. This is a relatively large specimen with one big crystal lying flat on its side and others sticking up off the matrix. The matrix is very unusual in that it has purple tones from amethyst mixed with the usual copper-mineral green, adding to the attractiveness of this one. 12.6 x 12.2 x 6.6cm


MD-61353 - Microcline (Var: Amazonite), Quartz (Var: Smoky Quartz) - - Archived
Florissant (Topaz Butte), Crystal Peak area, Teller Co., Colorado, USA

small cabinet, 8.4 x 7.9 x 7.7cm
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Microcline (Var: Amazonite), Quartz (Var: Smoky Quartz) from Florissant (Topaz Butte), Crystal Peak area, Teller Co., Colorado, USA [db_pics/mdpics/MD-61353a.jpg]

This relatively large specimen of the classic Colorado combo is notable for many reasons. First, the amazonite is an INTENSE deep robins-egg blue. It is also beautiful how the crystal is tucked back behind the smoky. And, the smoky itself has a very unusual, multi-peaked, architectural structure that gives the specimen wonderful form. These continue to be greatly prized by collectors. This specimen (as many of these do) has repairs (3 of them, the label says). If you have seen these pockets before, they generally look like a jumble of amazonites and smokies in mud that have to be "reassembled" by matching and fitting the crystals together. The repairs are virtually undetectable on this specimen. 8.4 x 7.9 x 7.7cm


MD-61355 - Quartz - - Archived
Sonora, Mexico

cabinet, 10.8 x 9.0 x 7.4cm
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Quartz from Sonora, Mexico [db_pics/mdpics/MD-61355a.jpg]

A spectacular starburst of quartz crystals with an unusual powdery white coating on them that instead of detracting, actually adds to their beauty and gives them a unique look. The terminations are complete save for a couple down at the bottom and the termination faces have a slightly different luster that gives them some contrast to the side faces, making the crystals even more distinctive. 10.8 x 9.0 x 7.4cm



(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
199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
361 362 363 364 365 366 367 368 369 370 371 372

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Rob Lavinsky, rob@irocks.com

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