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Polarizing Microscopes : For Use  is Metallurgy, Petrology, GEM testing , Crystallography and even in Biological aplications. The Polarizer and Analyzer is being used for the study of various materials which are sensitive to polarized light or affect the direction of polarized light.

Polarized light microscopy is perhaps best known for its geological applications primarily for the study of minerals in rock thin sections, but it can also be used to study many other materials. These include both natural and industrial minerals whether refined, extracted or manufactured, composites such as cements, ceramics, mineral fibers and polymers, and crystalline or highly ordered biological molecules such as DNA, starch, wood and urea. The technique can be used both qualitatively and quantitatively and is an outstanding tool for materials science, geology, chemistry, biology, metallurgy and even medicine.

Polarized light microscopy can distinguish between isotropic and anisotropic materials. The technique exploits optical properties of anisotropy to reveal detailed information about the structure and composition of materials, which are invaluable for identification and diagnostic purposes.