Optical properties of calcite

Calcite, a common carbonate mineral, exhibits distinctive optical properties that are important in crystallography, mineralogy, and economic geology. In thin sections under polarized light, calcite displays remarkable characteristics due to its birefringence. It has a uniaxial negative crystal structure, meaning light passing through it splits into two rays with different velocities, creating interference colors. These colors, which range _________ ________ ________ _____ ___ ______ ____ ___ ______.
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