How To Use columbite In A Sentence
- Columbite is the ore of niobium, which is used in steels and high strength alloys. Lounge of the Lab Lemming
- Niobium and tantalum— coltan is short for columbite-tantalite. Times, Sunday Times
- Overall, Congo has over half the world's cobalt, one-third of its diamonds, and three-fourths of its vital columbite-tantalite or "coltan," essential for computer chips, circuit boards, mobile phones, laptops, and other electronic devices. Printing: Reviewing F. William Engdahl's "Full Spectrum Dominance:" Part II
- Rhenium does not form minerals of its own, but it does occur as a trace element in columbite, tantalite and molybdenite. Rhenium
- The younger granites form rugged hills of Jurassic age, and contain tinstone and columbite.
- The abundance of these elements in the parental magma leads to the formation of less-common minerals such as apatite, beryl, topaz, amblygonite, lepidolite, spodumene tantalite, columbite, monazite, zircon, and uraninite.
- Beryl, columbite, and triphylite are common accessory minerals in the Estes pegmatite, especially in the coarse-grained layers.
- The quartz and albite contain small dark inclusions of cassiterite and columbite-tantalite-group minerals.
- The minerals in question—cassiterite, columbite-tantalite, gold and wolframite—are widely used in consumer electronics and other products, although Congo supplies no more than 20% of global demand for these raw materials. Can Annual Reports Save Lives?
- The dike is characterized by a greater abundance of muscovite than biotite; it also contains columbite-tantalite, cassiterite, beryl, spodumene, lepidolite, montebrasite, pollucite, and tourmaline.
