Native tungsten (IMA2011-004), W, is officially described as a new mineral from gold placers in the Bol'shaya Pol'ya river valley, Prepolar Urals, Russia, associated with yttriaite-(Y) and from quartz veins in the Mt Neroyka rock-crystal field, Ust–Puiva, Tyumenskaya Oblast', Russia. Tungsten forms polycrystalline grains and masses, and rarely cubo-octahedra. It is silver white to steel grey in colour, with metallic lustre and grey streak. The calculated density is 19.226 g/cm3. The Vickers hardness (VHN25) is 571.45 kg/mm2. In plane polarised light, tungsten is white with a pale-yellow tint and optically isotropic. Electron microprobe analyses of Bol'shaya Pol'ya river valley material provided W 99.27, Mo 0.06, Mn 0.04, Fe 0.01, total 99.38 wt.%. The five strongest powder X-ray diffraction lines are [dobs Å(I)(hkl)]: 2.2422(100)(110), 1.5835(25)(200), 1.2929(48)(211), 1.0010(23)(310) and 0.8457(24)(321). Tungsten is cubic, Im$\bar{3}$m, a = 3.1648(4) Å, V = 31.69(4) Å3 and Z = 2. Some additional occurrences of native tungsten and technogenic tungsten found in Nature are also described.

天然钨（IMA2011-004）W被正式描述为一种新矿物，来自俄罗斯前极乌拉尔邦Bol'shaya Pol'ya河谷的金砂矿中，与钇铁矿（Y）相关联，以及山中的石英脉Neroyka岩石晶体场，俄罗斯–秋明斯卡亚州普斯瓦（Ust – Puiva）。钨形成多晶粒和块状，很少见立方八面体。颜色为银白色至钢灰色，具有金属光泽和灰色条纹。计算的密度为19.226 g / cm 3。维氏硬度（VHN 25）为571.45 kg / mm 2... 在平面偏振光中，钨是白色的，具有淡黄色调和光学各向同性。Bol'shaya Pol'ya河谷物质的电子探针分析表明，W 99.27，Mo 0.06，Mn 0.04，Fe 0.01，总重达99.38 wt。％。5个最强的粉末X射线衍射线[ d OBS Å（我）（HKL）〕：2.2422（100）（110），1.5835（25）（200），1.2929（48）（211），1.0010（23） （310）和0.8457（24）（321）。钨是立方的，林$ \酒吧{3} $米，一个= 3.1648（4），V = 31.69（4）3和ž = 2还描述了天然钨和在自然界中发现技术形成钨的一些另外的出现...