#ferberite

[emperor-olsen]

I am excited to announce a major opportunity for me to expand my mineral business. These are images of the abandoned Oregon Mine near Nederland, Colorado. The mine used to produce tungsten ores, mainly Wolframite and ferberite, and I love both. I am going to plan an attempt to breach the opening, SAFELY, and see if any ore still exist in the mine.

[mineralsandsomerocks]

Ferberite with Quartz and Muscovite

Locality: Panasqueira, Portugal

[vugnasmineralblog]

Scheelite with Ferberite and Zinnwaldite Cínovec / Zinnwald (Cinvald), Erzgebirge; Krusné Hory Mts (Ore Mts), Germany & Czech Republic

[phenomenalgems]

🏯 This diminutive specimen packs a serious visual punch: Ferberite blades on quartz matrix, from Hunan Province, China. This unique gunmetal-black mineral has formed a slim blade of vertical growth, and is laying at an angle against the matrix. The quartz is in both terminated and massive forms, making for a unique contrast. This small cluster is a striking specimen of an unusual mineral, and would offer a lot of beauty to any specimen collection! 🏯Locality: Yaogangxian Mine, Hunan Province, China. 22 g (0.8 oz)—$24 on PhenomenalGems.Etsy.com. #ferberite #quartz #rocksandminerals #rocks #crystals #crystalcluster #mineralspecimen #metallic #hunan #china #mineralogy #minerals #blackandwhite #phenomenalgems #etsy #etsyshop #etsysellersofinstagram

[hematitehearts]

Dolomite on Siderite on Ferberite with Apatite

Locality: Panasqueira Mine, Beira Baixa, Portugal

[earthstory]

Ferberite

One of the ores of tungsten (as seen in old style light bulbs), like many metal minerals it forms a solid solution known as the Wolframite series (named for the intermediate compositions) between a manganese (called Hubnerite) and an iron end member (represented here), where the individual crystal can occupy any place along the spectrum of compositions between them. The crystals have a very bright lustre, and the usual colour is opaque black to very dark brown. Crystals are often flat tablets with lines down the long axis called striations. Like many metallic ores it is very dense in the hand, and fairly soft, with a hardness on Mohs scratch scale of 4.5.

It forms in high temperature hydrothermal veins, where the transporting superheated water was abruptly cooled, and in altered granites or pegmatites, usually as granular masses or slim prisms, though one example is known that precipitated directly from volcanic gases issuing from a fumarole (see http://bit.ly/131S7Aa for an explanation). It was first discovered in Spain (known as the type locality to the mineral world) in 1863 and named after a German mineralogist. As well as Spain this rarity is also found in Colorado, Bolivia, Russia, Korea and China, whence hails this rare 7.3 x 7.0 x 4.0 cm single striated crystal on the vein quartz in which it was born...

Loz Image credit: Joe Budd/Rob Lavinsky/iRocks.com

http://www.minerals.net/mineral/ferberite.aspx https://www.mindat.org/min-1476.html http://www.galleries.com/Ferberite http://www.mindat.org/min-1940.html http://www.galleries.com/Huebnerite http://bit.ly/1HVqYyi http://bit.ly/1D6g8Xi http://bit.ly/1InwgQd

[gemineral]

Fluorite on Ferberite Via EleganceMinerale on Etsy

[bijoux-et-mineraux]

Iridescent Ferberite and Quartz - Kara Oba, Karaganda Oblast, Kazakhstan