Etymology
The word "nacreous" is derived from the Latin word "nacreus," meaning "mother-of-pearl." "Nacre" is a substance that lines the inner shells of mollusks and gives them their iridescent appearance.
Meaning and Origin
The term "nacreous" refers to anything that has a similar appearance to mother-of-pearl. This includes surfaces that are:
Nacre is composed of multiple thin layers of calcium carbonate (CaCO3) arranged in a brick-like structure. This structure acts as a diffraction grating, scattering light into different wavelengths and producing the iridescent and pearly appearance.
In nature, nacreous effects can be seen in:
Nacreous materials have been used for centuries in jewelry, art, and decorative objects due to their beautiful appearance.
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