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Glossary Soil / Term

Circularly Polarized Light

This is produced by two mica plates between crossed polars. One plate is inserted in the 45 degree position in the slot of the microscope. The second plate is inserted above the polarizer at right angles to the upper mica plate. The effect is that all extinction phenomena of minerals disappear and they remain bright in all positions of the stage. Only isotropic materials and basal sections appear dark.

Permanent link Circularly Polarized Light - Creation date 2020-03-27


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