Thin Section of Rocks

In geological research, a thin section of a rock fragment, about 0.03mm in thickness, is used for microscopic observation of the texture and the mineral composition of the rock. The thickness allows light to penetrate, thus enabling the use of a polarization-microscope to examine the structure of rocks as well as to determine its type. The technique of making thin sections of rocks by hand requires a high level of skill. One must have full knowledge of the rock's characteristics, slice off a section without deforming the sample or creating any internal cracks, and finish off the thin section so that its thickness is constant and its surfaces are flat and smooth. A change in the thickness of a thin section results in the change in its color when viewed with a polarization-microscope. Here, we have outlined the process of making a thin section from a rock sample. Enjoy the natural beauty revealed through painstaking research that is supported by reliable technologies.