Mineral Specimens with Quartz

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KAGEM-3 - Emerald on Quartz - $ 3200 SOLD
Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia

miniature, 4.6 x 3.0 x 3.0 cm
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-48mm_0879.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec03a.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec03d.jpg]

This specimen features a 4.6 x 1.3 x 1.1 cm emerald of deep evergreen color, on quartz. As with most emeralds from this mine, the surface is a little rough and pitted compared to Colombian emeralds, but then there is admittedly a tradeoff for sheer color and impact vs price; and this difference in surface texture is part of the explanation for more reasonable pricing on Kagem emerald crystals for their size. To get a similarly-sized Colombian emerald, without repair, and with such intense color, would set you back 10 times this price in any case, so I felt that the Kagem pieces are a pretty good value in comparison to other worldwide emerald specimens. This piece I chose for its very fine exposure, showing the whole crystal and a freestanding termination. The termination is slightly asymmetric, but is complete. The color is very dark, but still teh piece is quite translucent and even transparent in zones. In person, it is much more impactful if backlit slightly. Upper-row professional photo is by Joe Budd.


KAGEM-4 - Emerald on Quartz - $ 2850
Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia

miniature, 3.8 x 2.8 x 1.4 cm
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-37mm_0882.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec04a.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec04b.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec04c.jpg]

Few Kagem emerald crystals were as gemmy and lustrous as Colombian pieces, but this comes as close as any I saw in the new finds. It is a very transparent crystal, perched in a rare crysatllized quartz matrix (at least, the quartz has some surviving faces on the front, though is massive on back). The emerald itself is 34 x 11 x 8mm in size. The temrination looks complete but on close inspection admittedly has some minute edge wear (as do many from these finds). It is nicely freestanding and displays well, and is a choice miniature from this interesting new specimen locality. More than that, its just a good big emerald for the price, regardless of where found. Upper-left professional photo is by Joe Budd.


KAGEM-5 - Emerald on Quartz - $ 3500 SOLD
Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia

miniature, 3.0 x 2.7 x 2.6 cm
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-33mm_0885.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-33mm_0886.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-33mm_0889.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/Emerald-Zambia-33mm_0891.jpg]
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Emerald on Quartz from Kagem Emerald Mine, Kafubu, Ndola, Copperbelt Province, Zambia [db_pics/new2010/ec05b.jpg]

In some ways, this was my favorite of the emeralds on sale from the first specimen production out of this world-famous gem mine, for its overall quality and aesthetics. The knoll of quartz matrix features a SHARP and VERY EQUANT, 2.6-cm-long emerald perched atop its natrual pedestal. Remarkably, it was excavated without it falling out and needing repairs. It is nestled, still, securely in the quartz which once enclosed (and protected!) the crystal. The top termination is very fine and sharp. The lower termination is not lustrous, but is nevertheless complete. It has a consistent , rich, evergreen color, darker than most Colombian emeralds and so distinct. It has better lustre and sharper form, than most Kagem pieces I have now seen. For a thumbnail-sized specimen (or it could display on a little pedestal as a small miniature), it was the best in the size class that I have seen for sale. Professional photos by Joe Budd. THIS SPECIMEN IS FEATURED ON THE ARTICLE ON THIS FIND, IN MINERALOGICAL RECORD JAN-FEB 2010, PAGE 64


kbt09 - Tourmaline on Quartz - $ 350
Little Three Mine, Ramona, San Diego County, California, USA

small cabinet, 6.3 x 4.8 x 4.2 cm
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Tourmaline on Quartz from Little Three Mine, Ramona, San Diego County, California, USA [db_pics/pics/kbt09a.jpg]
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Tourmaline on Quartz from Little Three Mine, Ramona, San Diego County, California, USA [db_pics/pics/kbt09b.jpg]
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Tourmaline on Quartz from Little Three Mine, Ramona, San Diego County, California, USA [db_pics/pics/kbt09c.jpg]

This gemmy pink to green crystal has great glassy luster and is nicely placed on part of a quartz crystal. The tourmaline crystal has great form and clarity. The colors are unusual and produce a very attractive specimen. The crystal does have two repairs but they do not detract from the piece too much visually, and its really dramatic as you can see! Mined by Louis Spaulding in the 1970s, sold to Chuck Houser of San Diego, and from him to me to Kevin in the mid 1990s. It is a VERY unusual locality piece for the gemminess and color! Ex. Kevin Brown collection.


kbt11 - Tourmaline in Quartz - SOLD
Martin Prospect, Newry, Maine, USA

miniature, 5.9 x 5.6 x 4.2 cm
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Tourmaline in Quartz from Martin Prospect, Newry, Maine, USA [db_pics/pics/kbt11a.jpg]
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Tourmaline in Quartz from Martin Prospect, Newry, Maine, USA [db_pics/pics/kbt11b.jpg]

Thin blue, pencil crystal imbedded in a quartz matrix from one of the more uncommon Maine locations. The crystal, crudely terminated on one end, has a rich blue color and very glassy luster. Could probably have some quartz removed to expose more of the crystal if someone wanted. Ex Kevin Brown collection. Unusual and odd for the Maine collector!


KN09-4 - Tourmaline on Quartz - SOLD
Mokovaya Pegmatite , Malkhan field, Transbaikal, Eastern-Siberian Region, Russia

small cabinet, 6.6 x 6.0 x 4.5 cm
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Tourmaline on Quartz from Mokovaya Pegmatite , Malkhan field, Transbaikal, Eastern-Siberian Region, Russia [db_pics/new09TucsonConsigns/tu04abg.jpg]
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Tourmaline on Quartz from Mokovaya Pegmatite , Malkhan field, Transbaikal, Eastern-Siberian Region, Russia [db_pics/new09TucsonConsigns/tu04bbg.jpg]
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Tourmaline on Quartz from Mokovaya Pegmatite , Malkhan field, Transbaikal, Eastern-Siberian Region, Russia [db_pics/new09TucsonConsigns/tu04c.jpg]

This is a rare matrix specimen from these mines, with a deep wine-red crystal enclosed in a quartz point, grown together somehow. The quartz is frosted or altering on its surface, giving a stark matte white background to the tourmaline which offsets it nicely. Complete, no repairs...this is rare, for the location , where most tourmalines are found as loose singles or big chunky matrix specimens but few in aesthetic associations. 188 grams


KW-TCQ03 - Pyrrhotite on Quartz - SOLD
Nikolai Mine, Dalnegorsk, Russia

large cabinet, 18.6 x 14.3 x 12.3 cm
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Pyrrhotite on Quartz from Nikolai Mine, Dalnegorsk, Russia [db_pics/pics/kw-tcq03a.jpg]
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Pyrrhotite on Quartz from Nikolai Mine, Dalnegorsk, Russia [db_pics/pics/kw-tcq03b.jpg]
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Pyrrhotite on Quartz from Nikolai Mine, Dalnegorsk, Russia [db_pics/pics/kw-tcq03c.jpg]
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Pyrrhotite on Quartz from Nikolai Mine, Dalnegorsk, Russia [db_pics/pics/kw-tcq03d.jpg]

This incredible large specimen is the finest large pyrrho I have seen since handling the well-known "Freilich specimen," from Sotheby's, in 2001. That piece was bigger, but this one is more elegant and significant because of the larger size of the pyrrhotite clusters. And I have seen a lot of them! The piece has stark , 3-dimensional clusters leaping off of crystallized quartz matrix. Despite the massiveness of the pyrrhotite clusters, their bright brassy color and curving form give them an elegance that a similarly sized galena or sphalerite would not have. the piece looks almost biological, with "snakes" of golden pyrrhotite "climbing" up the matrix to jump off the top like lemmings. The specimen is complete on all sides but the back, where it is naturally contacted. It was mined in 1996, I am told. On the whole specimen, there are just a few small spots of edge wear and thats it. It is nearly pristine, remarkable given the size and composition. Here is a world class example of the species, at a frankly bargain price. But, I got it cheaply, myself, so....


LC-167 - QUARTZ - SOLD
Rhonegletscher, Felskopf Wallis, Switzerland

small cabinet, 8 x 7.5 x 4 cm
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ex.  Schwethelm

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QUARTZ from Rhonegletscher, Felskopf Wallis, Switzerland [db_pics/pics/lc-167a.jpg]
QUARTZ from Rhonegletscher, Felskopf Wallis, Switzerland [db_pics/pics/lc-167b.jpg]CLICK HERE FOR LARGER IMAGE:
QUARTZ from Rhonegletscher, Felskopf Wallis, Switzerland [db_pics/pics/lc-167c.jpg]

A very attractive, bright, and sparkling cluster of quartz crystals perched upon a thin plate of matrix. Striking in person! The large crystal of quartz has unusual hoppered faces on its sides, though strangely not on the top faces as you'd expect of a hoppered crystal. The smaller crystals are all slightly sceptred and in the right lighting have a faint lavender hue.


LC-174 - CALCITE on QUARTZ - SOLD
Kongsberg, Norway

small cabinet, 6 x 5.5 x 5 cm
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CALCITE on QUARTZ from Kongsberg, Norway [db_pics/pics/lc-174a.jpg]
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CALCITE on QUARTZ from Kongsberg, Norway [db_pics/pics/lc-174b.jpg]
CALCITE on QUARTZ from Kongsberg, Norway [db_pics/pics/lc-174c.jpg]
CALCITE on QUARTZ from Kongsberg, Norway [db_pics/pics/lc-174d.jpg]CALCITE on QUARTZ from Kongsberg, Norway [db_pics/pics/lc-174e.jpg]

Kongsberg is of course famous for silver, BUT to the true collector a good calcite or fluorite from that mine has always been right up there on the almost-impossible-to-get list. This is a cluster of attractive crystals that are of good size for the locality, and they are perched on a plate of sparkling quartz points. The main crystal is completely terminated all around. It has only one defect, being one rough area on the left edge (as shown in upper row, rightmost photo) where there are two grooves that look like an adjacent crysatl was attached. In any case, there are two display views for the specimen, one of which puts that spot towards the back if it bothers you (my preference). A very 3-dimensional piece that is better in person!


LC-442 - SPHALERITE on SIDERITE on QUARTZ - SOLD
Grube Pfaffenberg, Neudorf, Harz Mountains, Germany

miniature, 5.5 x 4 x 3 cm
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442a.jpg]
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442b.jpg]
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442c.jpg]
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442d.jpg]
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442e.jpg]
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SPHALERITE on SIDERITE on QUARTZ from Grube Pfaffenberg, Neudorf, Harz Mountains, Germany [db_pics/pics/lc-442f.jpg]

SHARP, lustrous crystals of SPHALERITE to 1.3 cm across, perched on golden siderite! The crystal is really quite brilliant - better in person! This locality is of course classic for the world-reknowned galenas, but I would guess sphalerite is just as uncommon if not more so, since I have never seen another for sale. This would be a good miniature for any location, but its got to be damned good for Germany and for the Neudorf mines (at least in terms of what might come to market) and is certainly an old specimen. The label with it dates it to 1955, but I would assume it was mined long before. Still, the exact mine name was preserved which is unusual and nice to know.


LC-55a - CALCITE (PHANTOMS) on QUARTZ - SOLD
Fischbach, Idar-Oberstein, Germany

miniature, 4.5 x 3 x 3 cm
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CALCITE (PHANTOMS) on QUARTZ from Fischbach, Idar-Oberstein, Germany [db_pics/pics/lc-55aa.jpg]
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CALCITE (PHANTOMS) on QUARTZ from Fischbach, Idar-Oberstein, Germany [db_pics/pics/lc-55ab.jpg]

A choice calcite specimen recovered from one of the famous quartz or amethyst geodes of old Idar-Oberstein, long-ago exhausted and now difficult to find (which is what sent so many German craftsman off to Brazil). This is a fine miniature with crysatls to 2.5 cm. It shows phantoms consisting of hematite-colored reddish scalenohedra within a later generation of sharp hexagonal crystals and is complete all around.


LC-Q1 - Quartz (twinned) - SOLD
Brumado, Bahia, Brazil

small cabinet, 8 x 5 x 4 cm
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ex.  Wilhelm Leithauser

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Quartz (twinned) from Brumado, Bahia, Brazil [db_pics/pics/lc-q1a.jpg]

This is a superb example of the twin habit called "Japan Law" twinning. It features a japan law twin quartz with really exquisite aesthetics, since its basically floating free like its in mid-air, showing all terminations, perched upon those smaller, prismatic crystals. The piece is 4 inches wide, 3 inches tall. it is pristine and terminated fully. the twin hangs on some prism quartzes. all are translucent to fully transparent - more the former. this is one of the most elegant jap twin quartzes i have seen, and its an old one from brumado in brazil, out of a german collection. Custom lucite base included.


LC162 - ACANTHITE on QUARTZ - SOLD
Freiberg, Saxony, Germany

miniature, 5 x 4 x 3 cm
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ACANTHITE on QUARTZ from Freiberg, Saxony, Germany [db_pics/pics/lc162a.jpg]
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ACANTHITE on QUARTZ from Freiberg, Saxony, Germany [db_pics/pics/lc162b.jpg]
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ACANTHITE on QUARTZ from Freiberg, Saxony, Germany [db_pics/pics/lc162c.jpg]
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ACANTHITE on QUARTZ from Freiberg, Saxony, Germany [db_pics/pics/lc162d.jpg]

This is a superb miniature of an old classic species from this important silvermining district. More importantly, and unlike so many other such surviving examples, it is on matrix - and contrasting matrix at that! These crystals are not as massive as some I have seen from the locality but in fact are much more elegant and sharply crystallized than you normally see. Though it has lost the original labels, tags glued to the bottom indicate that it came from the Metzger collection through the Schwethelm collection to Leithauser. Again, as with most of his German specimens, it is not only imporant but also as aesthetic as you could ask for in such a creature.


LC408 - GALENA on QUARTZ - SOLD
Grube Castor, Engleskirchen, Germany

miniature, 5.5 x 4 x 2.5 cm
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GALENA on QUARTZ from Grube Castor, Engleskirchen, Germany [db_pics/pics/lc408a.jpg]CLICK HERE FOR LARGER IMAGE:
GALENA on QUARTZ from Grube Castor, Engleskirchen, Germany [db_pics/pics/lc408b.jpg]

A rare locality piece featuring highly modified galena crystals to 9 mm in size on sparkling quartz druse.


LC414 - GALENA on QUARTZ - SOLD
Pfonnenberg , Siegerland, Germany

miniature, 5.5 x 3 x 2.5 cm
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GALENA on QUARTZ from Pfonnenberg , Siegerland, Germany [db_pics/pics/lc414a.jpg]
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GALENA on QUARTZ from Pfonnenberg , Siegerland, Germany [db_pics/pics/lc414b.jpg]
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GALENA on QUARTZ from Pfonnenberg , Siegerland, Germany [db_pics/pics/lc414c.jpg]
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GALENA on QUARTZ from Pfonnenberg , Siegerland, Germany [db_pics/pics/lc414d.jpg]

This piece features 2 simply exquisite cuboctahedral galena crystals, highly modified, to 2.25 cm in size. It has minor sphalerite in association. It is a rare locality piece made all the better by the fact that the galenas are well-situated on a sparkling, snow-white quartz druse. The trim job is pretty darned good too - overall, making this one of the better galena miniatures I have had from any locality, old classic or not.



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

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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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