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Uniaxial minerals

The crystals of the tetragonal and hexagonal systems possess only one optic axis, which is parallel to the c-axis. For this reason, they are called ”uniaxial”. The optical characters of the uniaxial minerals may be summarized as follows: When a ray of light passes through a uniaxial crystal in any direction other than the optic …

Optical Properties of Minerals

The optical properties of minerals are important for their identification. Optical properties are determined with the help of a ”polarizing microscope”. The study of optical properties of minerals is known as Optical Mineralogy. With the help of optical mineralogy, we study the minerals and rocks with the help of their optical properties. The rocks and …