What makes a mineral Pleochroic?
What makes a mineral Pleochroic? Pleochroism or dichroism is the change in color evident as the mineral is rotated under plane-polarized light. The primary cause of dichroism or pleochroism in minerals is due to adsorption of particular wavelengths of light. This color depends on which optical path is viewed. Which crystal system is non Pleochroic system? Gemstones such as diamonds and garnets belong to the isometric or cubic crystal system. These gems have a single RI, so no matter the viewing angle, they only show one color. They're non-pleochroic. How does pleochroism occur? PLEOCHROISM is a change in color that...