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pleochroism

多色性; 多向色性; 复色现象

WordNet (r) 3.0 (2006) (WordNet)

pleochroism
n 1: the phenomenon of different colors appearing when certain
crystals are viewed from different directions

The Collaborative International Dictionary of English v.0.48 (gcide)

Pleochroism \Ple*och"ro*ism\, n. [Gr.? mor? ? color.]
(Crystallog.)
The property possessed by some crystals, of showing different
colors when viewed in the direction of different axes.
[1913 Webster]

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Pleochroism - Wikipedia
Pleochroism is an optical phenomenon in which a substance has different colors when positioned at different angles with respect to linearly polarized light [1] The roots of the word are from Greek (from Ancient Greek πλέων (pléōn) 'more' and χρῶμα (khrôma) 'color')
Pleochroism | Optical Properties, Color Variations Causes | Britannica
Pleochroism is the general term for both dichroism, which is found in uniaxial crystals (crystals with a single optic axis), and trichroism, found in biaxial crystals (two optic axes) It can be observed only in coloured, doubly refracting crystals
Pleochroism: Gems That Change Color, Causes, Examples
Pleochroism is an optical phenomenon observed in certain minerals and gemstones where they display different colors when viewed from different angles or under varying light conditions
What is Gemstone Pleochroism? - International Gem Society
Some gems show pleochroism, 2 or 3 different colors depending on the viewing angle Learn why this occurs and how it helps identify gems
Pleochroism - an overview | ScienceDirect Topics
Pleochroism is the property of a crystal exhibiting different colours because the crystal structure absorbs a particular wavelength depending on the direction of vibration light passing through a crystal
PLEOCHROISM Definition Meaning - Merriam-Webster
The meaning of PLEOCHROISM is the property of a crystal of showing different colors when viewed by light polarized in different directions
Pleochroism - Geology is the Way
Pleochroism is the change in color of a colored birefringent mineral that is observed at the petrographic microscope under plane polarized light when the stage is rotated The name itself derives, indeed from the Greek pléōn khrôma, more colors
Pleochroism | Science | Research Starters - EBSCO
Pleochroism is an intriguing optical property of certain substances, particularly crystals, that causes them to exhibit different colors when viewed from various angles
7. 9: Pleochroism - Geosciences LibreTexts
Pleochroism is the change of color in colored anistropic (double refractive) gemstones when viewed from different directions or when viewed through plane polarized light
Pleochroism - The Natural Gemstones Company
Pleochroism is derived from the Greek words ‘pleion’ (more) and ‘chroa’ (color) and refers to the optical phenomenon where a gemstone appears to have different colors when observed at different angles, specifically along different crystallographic axes

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