Optical indicatrix for an isotropic mineral3D Model
Optical indicatrix for an isotropic mineral
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More model informationThe optical indicatrix is a 3-dimensional depiction of the refractive index in differing directions through crystals. In the case of cubic minerals where the refractive index is the same in all directions, the resulting surface is a sphere. All cross sections through this shape are perfect circles - there is an infinite number of them (three are show here). For all other crystal systems, the result is an ellipsoid of varying shapes.
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