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Mineral Specimens with Volborthite
- 6 specimens selected
ex. Lawrence Conklin
A large, rich specimen with beautiful clusters of yellow-green volborthite, on matrix. It comes with an old museum label, though I am unsure from which institution this was.
An attractive and unusually rich specimen for the locality, of bright green volborthite crystals to several mm perched on chrysocolla. for the species, these are pretty good-sized crystals and isolated at that! 8 x 5 x 2 cm
15.0 x 11.2 x 6.0 cm. Volborthite is an uncommon hydrated copper vanadate secondary mineral found in the oxidized zones of vanadium-bearing hydrothermal deposits. This bright, large cabinet specimen is richly covered with tiny, sparkly, forest-green volborthite blades and canary-yellow, discrete microcrystals of the hydrated calcium uranyl vanadate tyuyamunite. This is an excellent, large combination specimen on blocky, sandstone matrix of these uncommon species.
13.5 x 6.5 x 5.2 cm. This bright cabinet specimen is richly covered with canary-yellow, discrete microcrystals of the hydrated uranyl vanadate tyuyamunite. One side of the piece also has sparkly, forest-green volborthite microcrystals with tyuyamunite. Volborthite is an uncommon hydrated copper vanadate secondary mineral found in the oxidized zones of vanadium-bearing hydrothermal deposits. This is an excellent, large combination specimen on blocky, sandstone matrix of these uncommon species.
5.8 x 4.5 x 4.2 cm. Volborthite is an uncommon hydrated copper vanadate secondary mineral found in the oxidized zones of vanadium-bearing hydrothermal deposits. This fine specimen features scintillating, electric lime-green volborthite plates nicely concentrated on the sculptural matrix of sandstone. Rare.
This is a rare copper-vanadium oxide and represents one of just a handful of mineral species that contain the element vanadium as a primary constituent. Neon green, highly lustrous, crystals of volborthite, to .6 cm across, are nestled in a vug in the matrix. Named in 1837 after Alexander von Volborth (1800-1876), russian paleontologist. This is one of the finest specimens I have ever seen of the mineral, which is usually just a boring microcrysatllized crust underneath better copper minerals. The crystals here are sharply formed, and well-protected all these years. I believe this to be a rather significant specimen. 4.3 x 3.2 x 3.1 cm
- 6 specimens selected
Rob Lavinsky, rob@irocks.com
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share specimen![Volborthite from Richardson District (Waring Creek), Grand Co., Utah [db_pics/new2010/D1013b.jpg]](db_pics/new2010/D1013b.jpg)
![Volborthite from Richardson District (Waring Creek), Grand Co., Utah [db_pics/new2010/D1013c.jpg]](db_pics/new2010/D1013c.jpg)
![Volborthite from Richardson District (Waring Creek), Grand Co., Utah [db_pics/new2010/D1013e.jpg]](db_pics/new2010/D1013e.jpg)
![Volborthite from Richardson District (Waring Creek), Grand Co., Utah [db_pics/new2010/D1013f.jpg]](db_pics/new2010/D1013f.jpg)
![Volborthite, Chrysocolla from Copiapó Province, Atacama Region, Chile [db_pics/mdpics/MD-20564a.jpg]](db_pics/mdpics/MD-20564a.jpg)
![Volborthite, Tyuyamunite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-233141a.jpg]](db_pics/mdpics/MD-233141a.jpg)
![Volborthite, Tyuyamunite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-233141b.jpg]](db_pics/mdpics/MD-233141b.jpg)
![Tyuyamunite, Volborthite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-245504a.jpg]](db_pics/mdpics/MD-245504a.jpg)
![Tyuyamunite, Volborthite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-245504b.jpg]](db_pics/mdpics/MD-245504b.jpg)
![Volborthite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-263831a.jpg]](db_pics/mdpics/MD-263831a.jpg)
![Volborthite from Ridenaur Mine (Ridenour Mine), Prospect Canyon District, Coconino Co., Arizona, USA [db_pics/mdpics/MD-263831b.jpg]](db_pics/mdpics/MD-263831b.jpg)
![Volborthite from Sofronovskii Cu Mine, Yugovskii Zavod, Perm', Permskaya Oblast', Middle Urals, Urals Region, Russia [db_pics/mdpics/MD-65625a.jpg]](db_pics/mdpics/MD-65625a.jpg)