Wolframite - Wikipedia
Wolframite is an iron, manganese, and tungstate mineral with a chemical formula of (Fe,Mn)WO 4 that is the intermediate mineral between ferberite (Fe 2+ rich) and hübnerite (Mn 2+ rich). [4] Along with scheelite, the wolframite series are the most important tungsten ore minerals.
黑钨矿 - 百度百科
黑钨矿的化学成分为（Fe，Mn）WO4，晶体属 单斜晶系 的 氧化物矿物。. 矿物和 条痕 颜色均随 铁 、锰含量而变化，含铁愈多，颜色愈深，一般为褐红色至黑色，条痕黄褐色至黑褐色， 金属光泽 至 半金属光泽，有一组完全的板面 解理，比重7.2-7.5，摩氏硬度4-4.5 ...
钨 - 维基百科，自由的百科全书
鎢 （英語： Tungsten[4]）， 是一種 化學元素，其 化學符號 为 W （源自德語： Wolfram [5][6]）， 原子序數 为74， 原子量 為 183.84 u。. 鎢非常硬，是鋼灰色至白色的 過渡金屬。. 鎢是 卑金屬，在自然界大多與其他 元素 以 化合物 的形態存在，而不是單獨存在。. 鎢 ...
黑钨矿 - 维基百科，自由的百科全书
黑鎢礦（英語： Wolframite ），又稱鎢錳鐵礦，是一種含鐵 錳 鎢酸鹽礦物，化學式為(Fe,Mn)WO 4 ，是 鎢鐵礦 （ 英语 ： Ferberite ） （FeWO 4 ）和 鎢錳礦 （ 英语 ： Hübnerite ） （MnWO 4 ）的中間礦物。
Wolframite - an overview | ScienceDirect Topics
Wolframite is defined as the principal ore mineral of tungsten, commonly found in association with tin ore in granite rocks. It is an iron manganese tungsten oxide mineral with a dark gray to brown-black color, high specific gravity, and is a key source …
Wolframite | Tungsten Ore, Ore Processing, Refining | Britannica
Wolframite, chief ore of tungsten, commonly associated with tin ore in and around granite. Such occurrences include Cornwall, Eng.; northwestern Spain and northern Portugal; eastern Germany; Myanmar (Burma); the Malay Peninsula; and Australia. Wolframite consists of a …
Wolframite Mineral Data
Wolframite. Comments: Dark gray, tabular crystals of wolframite to 2 cm. Carsten Sukatsch collection. Location: Kara-Oba, Republic of Kazakstan. Scale: Picture size 3 cm. © Willibald Büdel. Wolframite Crystallography. Axial Ratios: a:b:c =0.8324:1:0.8691. Cell Dimensions: a = 4.77, b = 5.73, c = 4.98, Z = 2; beta = 90° V = 136.11 Den (Calc)= 7.40.
The wolframite Mineral Series - The Mineral and Gemstone …
Wolframite is not scientifically classified as an individual mineral species by the IMA. However, it is universally recognized as a mineral series, with the minerals Huebnerite and Ferberite being its end members. Huebnerite is the manganese-rich end …
Wolframite Group: Mineral information, data and localities.
About Wolframite Group Hide. Member of: Columbite Supergroup. Note: " Wolframite " usually has a chemical composition covering the range between Hübnerite and Ferberite. Rarely, "wolframite" could also correspond to other, visually very similar members of the wolframite group.
Tungsten - Wikipedia
It is a rare metal found naturally on Earth almost exclusively as compounds with other elements. It was identified as a distinct element in 1781 and first isolated as a metal in 1783. Its important ores include scheelite and wolframite, the latter lending the element its alternative name.