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Mineral Specimens with Quartz
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A stunning, lustrous, deep green translucent aggregate of prehnite crystals, making for a beautiful and impressive piece - all the more so for the locality! 6.1 x 4.3 x 3.8 cm
You do not normally think of prehnite in and of itself as a top class mineral specimen, because the crystals don't usually get big and isolated. Well, they do from here! This translucent, pear-green doublet on matrix just glows! It has to be one of the most aesthetic prehnites I have seen, in this size! 5.8 x 2.3 x 1.5 cm
An apple-green ball of prehnite perched on a natrual pedestal. GLOWS with juicy color in person!!! This is a KILLER prehnite thumbnail...and a great thumbnail period, for that matter. 2.7 x 1.8 x 1.7 cm
This is one of the larger examples of prehnite associated with good amethyst, that we have. Most such crystals from these finds are from smaller pockets, and are smaller in size by quite a margin. Superb specimen with excellent deep color, and intense phantoms! Repaired once, cleanly, near the middle. 6.6 x 3.0 x 2.4 cm
A very elegant specimen with prehnite of apple-green color wrapped exquisitely around the tip of a GLASSY, GEMMY amethyst! lok at the tip poke through! 4.5 x 1.8 x 1.4 cm
Another superb miniature, showing a bright green doublet perched on clear quartz. Again, these are larger than the usual from here. 5.4 x 2.6 x 2.3 cm
8.3 x 6.3 x 3.8 cm. A SUPERB and lustrous, chocolate-brown heulandite crystal AESTHETICALLY set on wormy, green chalcedony from Jalgaon, India. The thick, tabular, coffin-shaped crystal has perfect, curved classic form and is much sought-after by collectors. Excellent material from the George Feist Collection #2889.
7.0 x 4.0 x 3.2 cm. Xenotime is an uncommon rare earth, being yttrium phosphate. This excellent and showy specimen features a cluster of gemmy, brown xenotime crystals nestled amongst an aesthetic cluster of very glassy, transparent, smoky quartz crystals. Matrix xenotime specimens are NOT that common, so even the trivial contact to the sidecar crystal and at the tip of the large smoky are not that detracting.
5.5 x 3.2 x 3.0 cm. An EXCEPTIONAL and PRETTY Brandberg specimen of a pristine, super-glassy amethyst crystal, with unusual vertical color zoning, beautifully perched on a natural base of glassy, smoky quartz crystals. You would be hard-pressed to design a more beautiful piece. Ex. Charlie Key collection.
7.3 x 3.5 x 3.1 cm. A CLASSIC, OLD-TIME specimen from the famous Mt. Mica Mine of Maine. This EXCELLENT and SHOWY combination piece consists of a pristine, complete all-around, lustrous, translucent, lightly frosted, tan quartz crystal partially wrapped in casted cookeite. The quartz crystal has a STRIKING, crenellated termination. This fine old-timer was collected in the early 1900s and was in the Harvard, Glover and Elling Collections.
6.5 x 5.5 x 5.0 cm. A DRAMATIC and AESTHETIC Chinese specimen of a 3.1 cm, water-clear quartz crystal "lighthouse" set on a rocky promontory of bladed hematite rosettes. The 3-dimensional form and composition of this showy piece is outstanding.
5.4 x 1.9 x 1.9 cm. A slightly sceptered quartz crystal from Brandberg showing both smoky and amethystine hues - a purple blush towards the bottom, and smoky at the top. Glassy faces, with some interesting skeletal growth on two faces of the termination. Ex. Charlie Key Collection.
8.2 x 5.5 x 3.4 cm. This calcite crystal, isolated on a matrix covered with sparkly stilibite microcrystals, looks like a jewel! It measures just under 3 cm across. There is a natural smoky inclusion in the center of the crystal that makes it hard for the camera to pick up on the high gemminess. The faces have wonderful luster.
8.4 x 3.2 x 2.4 cm. An undamaged, uncontacted floater crystal of super-clear quartz, doubly-terminated, with two distinctive things going for it: one, these interesting inclusions of graphite (carbon), and two, at least one visibly moving bubble inside a water pocket (enhydro) one of the more dramatic such examples we have seen.
20.4 x 11.9 x 8.5 cm. From the Ed David label: "Quartz, cluster of sharp smoky crystals (Indian head dress); dark coloring due to inclusions of acicular tourmaline and/or sandy stibnite." This is actually a FLOATER cluster, and it measures 8 inches in length! One of the crystals is a very strange sceptered form, as if the inside has been etched out, but leaving a core at the center, with a phantom clearly showing at the top. Overall, really has wonderful aesthetics as well as being a fine locality piece for US quartz. This is a SIGNIFICANT specimen for a Washington quartz.
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Rob Lavinsky, rob@irocks.com
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share specimen![Prehnite, Quartz from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139974a.jpg]](db_pics/mdpics/MD-139974a.jpg)
![Prehnite, Quartz from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139975a.jpg]](db_pics/mdpics/MD-139975a.jpg)
![Prehnite, Quartz from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139977a.jpg]](db_pics/mdpics/MD-139977a.jpg)
![Prehnite, Quartz, Quartz (Var: Amethyst) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139987a.jpg]](db_pics/mdpics/MD-139987a.jpg)
![Prehnite, Quartz (Var: Amethyst) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139990a.jpg]](db_pics/mdpics/MD-139990a.jpg)
![Prehnite, Quartz from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-139992a.jpg]](db_pics/mdpics/MD-139992a.jpg)
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![Xenotime-(Y), Quartz (Var: Smoky Quartz) from Novo Horizonte, Bahia, Northeast Region, Brazil [db_pics/mdpics/MD-140449b.jpg]](db_pics/mdpics/MD-140449b.jpg)
![Quartz (Var: Amethyst), Quartz (Var: Smoky Quartz) from Goboboseb Mountains, Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-140460a.jpg]](db_pics/mdpics/MD-140460a.jpg)
![Quartz, Cookeite from Mt Mica Quarry, Paris, Oxford Co., Maine, USA [db_pics/mdpics/MD-140468a.jpg]](db_pics/mdpics/MD-140468a.jpg)
![Quartz, Hematite from Lechang Mine, Lechang Co., Shaoguan Prefecture, Guangdong Province, China [db_pics/mdpics/MD-140474a.jpg]](db_pics/mdpics/MD-140474a.jpg)
![Quartz (Var: Smoky Quartz), Quartz (Var: Amethyst) from Brandberg area, Brandberg District, Erongo Region, Namibia [db_pics/mdpics/MD-140502a.jpg]](db_pics/mdpics/MD-140502a.jpg)
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![Calcite, Quartz from Khandivali Quarry (Kandivali Quarry), Mumbai District (Bombay District), Maharashtra, India [db_pics/mdpics/MD-140516b.jpg]](db_pics/mdpics/MD-140516b.jpg)
![Quartz, Graphite from Cong Li (?), Hunan Province, China [db_pics/mdpics/MD-140522a.jpg]](db_pics/mdpics/MD-140522a.jpg)
![Quartz (Var: Smoky Quartz) from Bald Hornet Claim (Blue Mountain Saddle), North Bend, King Co., Washington, USA [db_pics/mdpics/MD-140527a.jpg]](db_pics/mdpics/MD-140527a.jpg)
![Quartz (Var: Smoky Quartz) from Bald Hornet Claim (Blue Mountain Saddle), North Bend, King Co., Washington, USA [db_pics/mdpics/MD-140527b.jpg]](db_pics/mdpics/MD-140527b.jpg)