noun
- plural of pleochroism; the property of certain crystals to exhibit different colors when viewed from different directions
Usage: mineralogy; crystallography
Examples
- The geologist studied the pleochroisms of various mineral specimens under polarized light.
- Different pleochroisms help identify unknown crystals in the laboratory.
- The tourmaline exhibited strong pleochroisms, appearing green from one angle and pink from another.
- Students learned to recognize pleochroisms as a diagnostic tool in mineralogy class.
- The microscope revealed distinct pleochroisms in the thin section of rock.
- Pleochroisms are particularly pronounced in certain birefringent minerals.