vanadinite
enUKva·na·di·nite
V0018600 (və-nād′n-īt′, -năd′-, văn′ə-dē′nīt′)vanadinite
(vəˈnædɪˌnaɪt)va•nad•i•nite
(vəˈnæd nˌaɪt, -ˈneɪd-)n.
Noun | 1. | vanadinite - a mineral consisting of chloride and vanadate of lead; a source of vanadium |
单词 | vanadinite | |||
释义 | vanadiniteenUKva·na·di·niteV0018600 (və-nād′n-īt′, -năd′-, văn′ə-dē′nīt′)vanadinite(vəˈnædɪˌnaɪt)va•nad•i•nite(vəˈnæd nˌaɪt, -ˈneɪd-)n.
VanadiniteenUKvanadinite[və′nād·ən‚īt]Vanadinitea mineral of the class of vanadates. Its composition is Pb5(VO4)3Cl (78.3 percent PbO, 19.3 percent V2O5, and 2.4 percent CI). Vanadinite, which crystallizes in a hexagonal system, is found in the form of small prismatic crystals, kidney-shaped clusters, and earthy masses. It can be yellow, brown, or red. Its hardness on the mineralogical scale ranges from 2.75 to 3; its density is 6,500-7,100 kg/m3. Vanadinite is formed in the zone of oxidation of lead-zinc and copper polymetallic sulfide deposits. It is used as a source of vanadium. L. F. BORISENKO vanadiniteenUK
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