Tungsten mineral - tungsten mineral

Japanese: タングステン鉱物 - タングステンこうぶつ(英語表記)tungsten mineral
Tungsten mineral - tungsten mineral
A general term for minerals whose main component is tungsten. Examples include wolframite (FeWO 4 ) , wolframite (MnWO 4 ) , and solid solutions of these two minerals (Fe,Mn)WO 4 , scheelite (CaWO 4 ) , and wolframite (PbWO 4 ) . There are also tungstate minerals containing Cu, Bi, Fe, etc., and tungsten oxide ore (WO 3 ・H 2 O), but most are weathering products and are not important resources. They exist in the earth's crust at an average concentration of about 1 ppm. Of these minerals, wolframite and scheelite are important resources.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
タングステンを主成分とする鉱物の総称。鉄重石FeWO4,マンガン重石MnWO4,この両者の固溶体である鉄マンガン重石(Fe,Mn)WO4,灰重石CaWO4,鉛重石PbWO4などがある。さらにCu,Bi,Feなどを含むタングステン酸塩鉱物や酸化タングステン鉱WO3・H2Oなどもあるが,多くは風化生成物であり,資源としては重要ではない。地殻中には平均1ppm程度存在する。これら鉱物の中で,鉄マンガン重石と灰重石が資源として重要である。

出典 株式会社平凡社世界大百科事典 第2版について 情報

<<:  Tungstate - Tungsten Sanen

>>:  tungsten

Recommend

Eather, W.

...The premise of most of these theories is that ...

Radioactive prospecting

Also known as radioactive exploration. It is a met...

capital gain

...Income gains are income obtained by holding as...

Surrender - surrender; capitulation

It refers to the cease of hostilities by the armie...

Kim Saskas (English spelling)

[Born] King Sunjo 7 (1807) [Died] 1863, 14th year ...

Teitoku

A man of letters in the early Edo period. A centr...

Hoei Tsuho

Copper coins minted by the shogunate in the mid-Ed...

Hemp bamboo - Dendrocalamus latiflorus Munro

A large bamboo of the Poaceae family, its culms gr...

Upside-down frogs - upside-down frogs

…The larvae usually metamorphose within 2–3 month...

Kangyur/Tengyur (English spelling) bKa' 'gyur bsTan'gyur

These are the Tibetan names for the group of Buddh...

Weinberg, S.

...A unified theory of electromagnetic interactio...

Japanese Americans

Japanese immigrants with American citizenship and ...

Masatomo Ashikaga

Year of death: Entoku 3.4.3 (1491.5.11) Year of bi...

Oeyama Pass (Oeyama Pass)

This checkpoint was established just before the Oi...

Faiguet de Villeneuve, J.

...The proportion of post-empirical languages ​​a...