Definition, Betydelse & Synonymer | Engelska ordet WOLFRAMITE

Definition av WOLFRAMITE

1. volframit

Exempel på hur man kan använda WOLFRAMITE i en mening

• Associated minerals include native bismuth, aikinite, arsenopyrite, stannite, galena, pyrite, chalcopyrite, tourmaline, wolframite, cassiterite and quartz.
• Several mineral collections around the world include specimens from the mine, especially the ferberite and fluorapatite varieties of wolframite.
• Ferberite and hübnerite often contain both divalent cations of iron and manganese, with wolframite as the intermediate species for which the solid solution series is named.
• It is found in tin-bearing, hydrothermal vein deposits occurring with chalcopyrite, sphalerite, tetrahedrite, arsenopyrite, pyrite, cassiterite, and wolframite.
• The 1955 cumulative production reached 54 tonnes of gold ingot and 22,000 tonnes of cassiterite or cassiterite mixed with wolframite or coltan.
• The mineralisation is characterised by sheeted greisen veining and stockworks containing wolframite and cassiterite.
• In the Gannan occurrence, the only reported location, it occurs in quartz veins in association with wolframite, native bismuth, bismuthinite, pyrite and chalcopyrite.
• For example, bauxite is used as flux for blast furnaces, while others such as wolframite, pyrolusite, and chromite are used in making ferrous alloys.
• It typically occurs associated with native bismuth, bismuthinite, bismite, wolframite, ferberite, scheelite, ferritungstite, anthoinite, mpororoite, koechlinite, cassiterite, topaz, muscovite, tourmaline and quartz.
• Its important ores include scheelite and wolframite, the latter lending the element its alternative name.
• The wolframite series is mainly formed through magmatic-hydrothermal processes associated with felsic magmas, namely skarns, or through metamorphic processes.
• It is commonly associated with topaz, cassiterite, wolframite, lepidolite, spodumene, beryl, tourmaline, and fluorite.

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