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because of germanium oxide´s (GeO2) high refractive index, about 10% of worldwide germanium consumption is from optical uses such as lenses to cameras and centres of fibre cables

another use of germanium is as a catalyst for polymerisation of polyethylene terephthalate, the plastic in most water bottles. germanium is also used in an alloy with silicon for semiconductors that can be faster then those with only silicon.

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12y ago

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