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In section cutting lab the samples of rocks and minerals are prepared as thin sections of specified thickness and polished sections for their study un petrology lab.
Following are the equipment that are being mainly used in the lab-
Stereo microscope is used foe magnification observation of polished section of rocks and minerals. It is also useful in studying individual grains in an aggregate, to handpick desired grains for further work such as for making polished section etc.
This optical microscope is used for the study of thin sections of rock samples under refracted light (for petrographic study) as well as reflected light (ore microscopic study). It is mainly used in the study of ore minerals and important for economic aspects.
A fundamental principle of optical microscopy is that most minerals (except opaque) transmit light if they are sliced enough about 0.03 mm and show characteristic optical properties such as Colour, Pleochroism, Relief, Form, Cleavage, Twinkling, Interference Colour etc. which can be observed by petrographic microscope (refracted light microscope). It is very useful in the identification of minerals and determining rock type.