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Mineral Specimens with Quartz
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10.2 x 8.7 x 6.6 cm. A complete quartz crystal literally enveloping an elongated dark green tourmaline. We have all seen tourmalines sticking out of quartz, but seldom do you see so much tourmaline embedded in a quartz, and then further to have it be a balanced, aesthetic specimen...very uncommon. In person, the tourmaline is somewhat translucent and has color, by the way, though it is hard to photograph. Weighs 655 grams.
7.1 x 3.0 x 2.7 cm. This quartz has a bi-colored tourmaline nestled in its terminations. The color is a slight citrine hue, though not intense. The tourmaline is an attractive bicolor, crudely terminated (as if the termination broke and re-healed during growth).
3.6 x 3.6 x 2.6 cm. This specimen has beautiful ball-like clusters of sparkling, glassy eosphorite, perched on delicate yellow mica books and quartz. For a short time last fall, these were thought to be another, relatively new, species (kastningite) but at this point seem to be a weird varietal of eosphorite (and not a new species per se by the really technical mineralogist standards). In any case, they are attractive little clusters of this desirable species in a novel habit.
5.8 x 4.5 x 2.5 cm. This is a broken quartz shard on one side, complete faces on the other. It had grown in tune with a thin tourmaline which later seems to have led to a split along a mid-line in the past which allowed further minute crystallization over the former break face of the quartz (front of the piece now). This thin layer of growth over the conchoidal cleavage makes the surface shimmer.
7.3 x 3.8 x 3.1 cm. An unusual rose quartz specimen with wreathlike growths of rose quartz atop a sceptre of pale smoky quartz.
6.3 x 6.0 x 4.9 cm. A most unusual quartz in that the crystals show the rare Tessin style of crystallization. It is a visually unusual, immediately recognizable habit that sets these crystals apart from normal quartz forms. For more on this habit, see this link: http://www.quartzpage.de/crs_habits.html#Tessin. This specimen is a very aesthetic combination of 3 such crystals in a 3-dimensional spray.
16.8 x 11.7 x 7.6 cm. A large and colorful combination piece that is admittedly more notable for the quartz, and the combination itself, than for the quality of the tourmaline. It is interesting, with several styles of tourmaline embedded on a really sparkling, lustrous cluster of quartz (but the termination of the longer tourmaline is damaged, on close inspection). The quartz cluster itself is actually quite nice in person, very 3-dimensional and with a variety of crystal habits present on the one specimen.
9.7 x 3.8 x 3.3 cm. This is an incredibly dramatic cluster that is complete all around, and has very bright lustre. Weighs 149 grams.
17.5 x 16.2 x 0.8 cm. A tabular quartz like no other I have seen, fascinating in its overall form and symmetry. It is, surprisingly, complete all around, a floater, with sharp edges and no damage to speak of. The shape like a triangle is an accident of nature - it is a typical quartz shard in how it would have formed, it just ended up with a very unusual shape to our eyes. Weighs 280 grams.
A sharp, complete crystal 2.5 cm on edge, intergrown with a partial crystal, perched at the top of the quartz matrix. 4.5 x 4.3 x 2 cm
7.7 x 5.9 x 4.5 cm. A very fine, gemmy specimen of a glassy citrine quartz crystal with diverse inclusions, mostly siderite, from the Adams Hiddenite and Emerald Mine at Hiddenite, North Carolina. This complete all-around, pristine and transparent crystal has a few siderite blades, up to 1.3 cm, plus other inclusions scattered through the interior of this sharply terminated crystal. The crystal color is a pleasing light, amber-yellow. Ex. Dr. Ed David Collection.
The find of the year has been these incredible fluorites from China, with large, razor-sharp crystals, and gorgeous color (in the best specimens, such as this one) that grades from green cores to purple exteriors. This one is just tops in every way. There are crystals here to almost 5 centimeters tip-to-tip, with no damage, evenly balanced across the contrasting stark white quartz matrix. 18.5 x 13.8 x 4.5 cm
10.9 x 5.7 x 4.6 cm. An excellent and aesthetic cabinet combination specimen from a new find at the Dreamtime Mine of Teller County, Colorado. A 5.0 cm, pristine, translucent, lustrous, doubly terminated smoky quartz crystal dominates this piece. The rest of the piece consists of smaller smoky quarts crystals with microcline. Scattered about are color-zoned, purple and colorless fluorite cubes to 1.2 cm. If you look hard, there are even a couple of small rose quartz crystals in a cluster. Ex. Adam Sotomayor Collection, who also collected it.
15.5 x 9.5 x 8.0 cm. An impressive and unusual large cabinet amethyst and smoky quartz specimen from recent finds at Irai, Brazil. Gemmy and lustrous, vivid purple, amethyst crystal rosettes are richly and very attractively scattered on a 3-dimensional, flute-like matrix of glassy and gemmy, smoky quartz crystals. The amethyst and smoky quartz rest on a thin crust of intergrown quartz crystal rosettes. The amethyst and smoky quartz crystals have excellent lustre on this piece, which has many small "caves" and even a hard-to-see, 4.7 cm long, natural arch of amethyst and smoky quartz lower on the side of one face.
4.3 x 3.3 x 2.5 cm. A lustrous, partially gemmy, zoned golden-yellow helvite crystal set on feldspar matrix with glassy smoky quartz crystals from recent finds at the Tongbei area of China. The 9 mm x 9 mm, sharp tetragonal crystal has interesting beveled edges. A rich sprinkling of tiny muscovites are a very nice accent. Helvite is a rare manganese, beryllium silicate and this is a very fine combination specimen from this well-known locale, known more for its super spessartine garnets.
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Rob Lavinsky, rob@irocks.com
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share specimen![Quartz, Elbaite from Goiabeira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236449a.jpg]](db_pics/mdpics/MD-236449a.jpg)
![Elbaite, Quartz (Var: Citrine) from Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236452a.jpg]](db_pics/mdpics/MD-236452a.jpg)
![Eosphorite, Muscovite, Quartz from Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236453a.jpg]](db_pics/mdpics/MD-236453a.jpg)
![Elbaite, Quartz from Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236462a.jpg]](db_pics/mdpics/MD-236462a.jpg)
![Elbaite, Quartz from Coronel Murta, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236462b.jpg]](db_pics/mdpics/MD-236462b.jpg)
![Quartz (Var: Rose Quartz), Quartz (Var: Smoky Quartz) from Pitorra claim, Laranjeiras, Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236465a.jpg]](db_pics/mdpics/MD-236465a.jpg)
![Quartz from http://www.quartzpage.de/crs_habits.html#Tessin. [db_pics/mdpics/MD-236473a.jpg]](db_pics/mdpics/MD-236473a.jpg)
![Quartz from http://www.quartzpage.de/crs_habits.html#Tessin. [db_pics/mdpics/MD-236473b.jpg]](db_pics/mdpics/MD-236473b.jpg)
![Elbaite, Quartz from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236485a.jpg]](db_pics/mdpics/MD-236485a.jpg)
![Quartz (Var: Smoky Quartz) from Diamantina, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236489a.jpg]](db_pics/mdpics/MD-236489a.jpg)
![Quartz from Macaco mine, Conselheiro Pena, Doce valley, Minas Gerais, Southeast Region, Brazil [db_pics/mdpics/MD-236496a.jpg]](db_pics/mdpics/MD-236496a.jpg)
![Fluorite, Quartz from Jiangxi Province, China [db_pics/mdpics/MD-23659a.jpg]](db_pics/mdpics/MD-23659a.jpg)
![Quartz (Var: Citrine) from Adams Hiddenite and Emerald Mine (Alexander Prospect; Abernathy Prospect; Hiddenite Mine), Alexander Co., North Carolina, USA [db_pics/mdpics/MD-236598a.jpg]](db_pics/mdpics/MD-236598a.jpg)
![Fluorite, Quartz from Jiangxi Province, China [db_pics/mdpics/MD-23660a.jpg]](db_pics/mdpics/MD-23660a.jpg)
![Quartz (Var: Smoky Quartz), Fluorite, Microcline from Dreamtime Claim, Crystal Peak area, Teller Co., Colorado, USA [db_pics/mdpics/MD-236611a.jpg]](db_pics/mdpics/MD-236611a.jpg)
![Quartz (Var: Amethyst), Quartz (Var: Smoky Quartz) from IraÃ, Alto Uruguai region, Rio Grande do Sul, South Region, Brazil [db_pics/mdpics/MD-236619a.jpg]](db_pics/mdpics/MD-236619a.jpg)
![Helvite, Quartz (Var: Smoky Quartz), Feldspar Group from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-236621a.jpg]](db_pics/mdpics/MD-236621a.jpg)
![Helvite, Quartz (Var: Smoky Quartz), Feldspar Group from Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou Prefecture, Fujian Province, China [db_pics/mdpics/MD-236621b.jpg]](db_pics/mdpics/MD-236621b.jpg)