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Mineral Specimens with Quartz
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7.9 x 5.9 x 5.4 cm. Elegant, slender prisms of quartz stick up from a matrix of rounded dark sphalerite crystals - accented by sparing chalcopyrite.
4.4 x 3.2 x 2.5 cm. A dramatic, gemmy and wonderful example of Japan-law(90 degree) twinning in quartz - looking like the more common from Peru but 100% this is Bolivian, ex. Brian Kosnar import. The larger photo shows very clearly the fine twin, and the smaller one emphasizes the superb gemminess of these thin, tabular crystals with their razor-sharp terminations.
6.9 x 5.5 x 3.5 cm. Another very unusual Onganja specimen out of the Sussman collection - a gemmy beta-style quartz crystal perched on a branching specimen of crystallized copper with an antique patina! One of those rare specimens Marshall was able to pick up by having access to so much fine African material during his travels.
11.8 x 7.7 x 6.9 cm. Montmorillonite falls into the categories of clays - in this case, with a slightly pink tone, richly included inside of a cluster of intergrown, LARGE, sharp quartz crystals. The biggest crystal here is skeletal internally, and is wrapped around a smaller crystal of more conventional form. The quartz has a superb GLASSY luster. Old material from San Diego, circa 1950s-70s.
7.5 x 6.0 x 3.9 cm. Lustrous, tan heulandite crystals nicely placed on basalt matrix covered with quartz and calcite crystals. Ex. Cilen and George Elling Collections.
A very sharp, fine, beautiful (all things considered) 4.5 x 4 x 2 cm ilmenite crystal nestled in smoky quartz matrix! This is a very attractive piece, from the recent find of last year. The major crystal is undamaged, atop, though it has some rough spots on the bottom and back side. Its better in person and nicely 3-dimensional. 5.2 x 5.0 x 4.3 cm
A pristine, sharp, 2 x 1.5 x 1 cm ilmenite perched on quartz! Very nice example for the locality! 5.7 x 3.5 x 3.4 cm
This specimen features a 3 x 3 x 1 cm ilmenite nearly embedded in the quartz matrix. On its edges are perched SHARP cassiterite crystals to 1.25 cm. Some show twinning, I think. This is a MOST UNUSUAL association! I cannot recall seeing it from any other locality, before. It is the only such ilmenite we have, with epitaxial cassiterite association. 5.6 x 3.5 x 3.1 cm
One of a very few specimens we have from a special pocket Charlie said was found about 3 years ago, this piece glows with more intense color in person. It features radial rosettes of shattuckite, itself a rare mineral. These are perched on top of extremely lustrous crystals of primary malachite to about 1 inch (i.e. malachite formed first as a large crystal rather than as a replacement of previous azurite as you normally see from Tsumeb or Bisbee...and quite rare in such size and quality). These alone would comand a pretty good price in such a miniature, with malachite of this quality. However, to cap it off, the malachite sets atop a rolling matrix of INTENSE BLUE quartz crystals, colored by shattuckite inclusions. Then, those quartzes site atop a thick layer of shattuckite on matrix...its just an incredible combination. In person, its more 3-dimensional as well. 6.5 x 5.1 x 2.7 cm
A shockingly intense blue quartz specimen, with brilliantly lustrous crystals colored by minute inclusions of shattuckite. This is the highest color intensity I have ever seen for the material, and the piece just glows from across the room with color 5.9 x 5.4 x 3.9 cm
9.6 x 7.8 x 5.5 cm. Very glassy and lustrous beta quartz crystals to 2.6 cm are aesthetically scattered on mounded matrix covered with sparkly, black hematite blades on this CLASSIC, OLD-TIME and showy specimen from the famous Florence Mine of Egremont, England. The matrix is fascinating in itself, being a skeletal-looking, hematite kidney ore. Ex. George Elling Collection.
17.5 x 9.5 x 5.5 cm. A DRAMATIC and SHOWY LARGE CABINET specimen of translucent, honey-yellow fluorite hemispheres to 2.6 cm aesthetically scattered on quartz crystal-covered basalt matrix from the Mahodari Quarry of India. This is one of the few localities in the world for botryoidal, truly acrystalline, fluorite.
8.0 x 6.5 x 6.5 cm. A MONSTROUS, 6.5 cm, translucent, blue afghanite crystal nicely placed on quartz matrix from the Type Locality - Sar-e-Sang, Afghanistan. One end is crudely terminated and has a lustrous, muscovite book. The other end is sawed, as are two other matrix faces, to enhance display. This is a huge and showy representation of this rare, namesake species.
7.0 x 6.7 x 3.0 cm. These new Spessartines are some of the most attractive and highly displayable specimens to come out of China in the last few years. This particular piece features several lustrous, gemmy, reddish-orange trapezohedra measuring up to 9 mm, which is rather large for this locality. They are associated with lustrous, gem quality Smoky Quartz crystals and Muscovite "books" on cream colored Feldspar matrix. There is actually a small Pyrite cube on the end of the specimen for a great touch. The color in these Spessartine crystals is a rich orange hue (due to nearly pure Manganese content) and are very attractive. They are not at all dull or pitted. This material is becoming less and less available on the market, and keep in mind that there are only a few worldwide localities that produce this color of Spessartine in fine specimens. Bright orange Spessartine specimens are NOT easy to find these days from any locality.
8.2 x 3.4 x 3.3 cm. These new Chinese Rhodos have made a big splash on the market in the last year or so. The specimens associated with Quartz and sulfides (like this one) really remind me of specimens I’ve seen from various mines in Colorado. If this Rhodo were from the Sweet Home mine, it would be a great treasure for many Colorado collectors, although the habit would be incorrect. This piece actually resembles the habit of Rhodochrosite found at the Eagle mine, but on a matrix that resembles the Sweet Home mine. It features several sharp, semi lustrous, pink, flattened rhombohedra of Rhodochrosite sitting on attractive Quartz crystals on sulfide matrix.
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Rob Lavinsky, rob@irocks.com
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Mineral Specimens by species; or
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share specimen![Quartz, Sphalerite, Chalcopyrite from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-130110a.jpg]](db_pics/mdpics/MD-130110a.jpg)
![Quartz, Sphalerite, Chalcopyrite from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-130110b.jpg]](db_pics/mdpics/MD-130110b.jpg)
![Quartz, Sphalerite, Chalcopyrite from Huaron Mining District, San Jose de Huayllay District, Cerro de Pasco, Daniel Alcides Carrión Province, Pasco Department, Peru [db_pics/mdpics/MD-130110c.jpg]](db_pics/mdpics/MD-130110c.jpg)
![Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-130241a.jpg]](db_pics/mdpics/MD-130241a.jpg)
![Quartz from Siglo Veinte Mine (Siglo XX Mine; Llallagua Mine; Catavi), Llallagua, Rafael Bustillo Province, Potosà Department, Bolivia [db_pics/mdpics/MD-130241b.jpg]](db_pics/mdpics/MD-130241b.jpg)
![Quartz, Copper from Emke Mine, Ogonja (Onganja), Seeis, Windhoek District, Khomas Region, Namibia [db_pics/mdpics/MD-130245a.jpg]](db_pics/mdpics/MD-130245a.jpg)
![Montmorillonite, Quartz from White Queen Mine, Hiriart Mountain (Heriart; Heriot; Hiriat Hill), Pala District, San Diego Co., California, USA [db_pics/mdpics/MD-130250a.jpg]](db_pics/mdpics/MD-130250a.jpg)
![Montmorillonite, Quartz from White Queen Mine, Hiriart Mountain (Heriart; Heriot; Hiriat Hill), Pala District, San Diego Co., California, USA [db_pics/mdpics/MD-130250b.jpg]](db_pics/mdpics/MD-130250b.jpg)
![Heulandite-Ca, Quartz, Calcite from Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA [db_pics/mdpics/MD-130260a.jpg]](db_pics/mdpics/MD-130260a.jpg)
![Heulandite-Ca, Quartz, Calcite from Prospect Park Quarry (Sowerbutt Quarry; Vandermade Quarry; Warren Brothers Quarry), Prospect Park, Passaic Co., New Jersey, USA [db_pics/mdpics/MD-130260b.jpg]](db_pics/mdpics/MD-130260b.jpg)
![Ilmenite, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-130335a.jpg]](db_pics/mdpics/MD-130335a.jpg)
![Ilmenite, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-130336a.jpg]](db_pics/mdpics/MD-130336a.jpg)
![Ilmenite, Cassiterite, Quartz (Var: Smoky Quartz) from Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia [db_pics/mdpics/MD-130337a.jpg]](db_pics/mdpics/MD-130337a.jpg)
![Shattuckite, Malachite, Quartz from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-130339a.jpg]](db_pics/mdpics/MD-130339a.jpg)
![Shattuckite, Quartz from Kaokoveld Mine, Kaokoveld Plateau, Kunene Region, Namibia [db_pics/mdpics/MD-130348a.jpg]](db_pics/mdpics/MD-130348a.jpg)
![Quartz, Hematite from Florence Mine, Egremont, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-130350a.jpg]](db_pics/mdpics/MD-130350a.jpg)
![Quartz, Hematite from Florence Mine, Egremont, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England, UK [db_pics/mdpics/MD-130350b.jpg]](db_pics/mdpics/MD-130350b.jpg)
![Fluorite, Quartz from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-130360a.jpg]](db_pics/mdpics/MD-130360a.jpg)
![Fluorite, Quartz from Mahodari, Nasik District, Maharashtra, India [db_pics/mdpics/MD-130360b.jpg]](db_pics/mdpics/MD-130360b.jpg)
![Afghanite, Quartz from Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan [db_pics/mdpics/MD-130379a.jpg]](db_pics/mdpics/MD-130379a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz), Feldspar Group from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-130903a.jpg]](db_pics/mdpics/MD-130903a.jpg)
![Spessartine, Quartz (Var: Smoky Quartz), Feldspar Group from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-130903b.jpg]](db_pics/mdpics/MD-130903b.jpg)
