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Accessory plates used with polarizing microscope

There are some standard accessory plates used with a polarizing microscope to examine the optical properties of minerals. Some of the accessory plates are (i) quartz wedge, (ii) gypsum plates, and (iii) mica plates. (1). Quartz Plates: The quartz wedge is a very thin wedge-shaped plate of quartz in which the fast vibration direction is …