How To Use Columbite-tantalite In A Sentence

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
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.

On Boing Boing Gadgets, this wrenching video in which Eve Ensler explains that Congolese militias use rape to enforce discipline among a slave workforce that mines columbite-tantalite ore, a common raw material for many devices. Boing Boing
There's a crucial element in the manufacture of cell phones, laptops and the like called columbite-tantalite (or coltan). Latest Articles
A previous study of the columbite-tantalite series minerals indicated a similar change for tin, tantalum, niobium, and manganese.
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.
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?