Mathematical Crystallography
The biaxial indicatrix is a geometric representation used to describe the optical properties of biaxial crystals, where light can be refracted in two different directions. This indicatrix has an elliptical shape and is defined by three principal refractive indices, corresponding to the three crystallographic axes. Understanding the biaxial indicatrix is essential for studying how light interacts with different crystalline structures, as it helps predict the behavior of light as it passes through these materials.
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