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Becke lines are bright lines that appear at the edges of a particle when it is immersed in a liquid of a different refractive index, observed under a microscope. They are caused by the refraction of light as it passes from the particle into the surrounding medium. The presence and characteristics of Becke lines can help in identifying minerals and determining their refractive indices, which is useful in mineralogy and gemology. The lines move in relation to the focus of the microscope when the refractive index of the liquid is adjusted.

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AnswerBot

1w ago

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