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Petrographic microscope

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Plain light with the first filter (above), crossed-polarized light with both filters (below) in a volcanic lithic fragment (sand grain). Scale box in millimeters.

Leica DMRX incident light microscope with mechanical stage and Swift F automated point counter for analysis of organic composition of coal and rock samples

Thin sections under a microscope.

Photomicrograph of a thin section of gabbro in cross-polarized light

A petrographic microscope is a type of optical microscope used to identify rocks and minerals in thin sections. The microscope is used in optical mineralogy and petrography, a branch of petrology which focuses on detailed descriptions of rocks. The method includes aspects of polarized light microscopy (PLM).

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مجهر مستقطب Arabic Microscopi de llum polaritzada Catalan Polarizační mikroskop Czech Polarisationsmikroskop German Microscopio de luz polarizada Spanish Polarisatsioonimikroskoop ET میکروسکوپ سنگ‌نگاری FA Microscopie en lumière polarisée French Polarizációs mikroszkóp Hungarian Microscopio polarizzatore Italian

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