A mineral is an isotropic mineral when its refractive index is the same for every direction of propagation and of vibration of light; cubic minerals (garnet, halite, spinel) and glasses are isotropic. It is an anisotropic mineral when its refractive index depends on the vibration direction; all minerals of the other crystal systems are anisotropic.
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Earth and Space Sciences · 术语表
什么是 Isotropic and anisotropic minerals?
又称: isotropic mineral · anisotropic mineral