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Related to schiller: Schiller test
A lustrous colored reflection from certain planes in a mineral grain.
[German, iridescence, from Middle High German schilher, iridescent taffeta, from schilhen, to twinkle, squint, from Old High German scilihen, to squint, wink.]
(Minerals) an unusual iridescent or metallic lustre in some minerals caused by internal reflection from certain inclusions such as gas cavities or mineral intergrowths. Formula: NaFe3B3Al3(Al3Si6O27)(OH)4
[C19: from German Schiller iridescence, from Old High German scilihen to blink]
(Biography) Johann Christoph Friedrich von (joˈhan ˈkrɪstɔf ˈfriːdrɪç fɔn). 1759–1805, German poet, dramatist, historian, and critic. His concern with the ideal freedom of the human spirit to rise above the constraints placed upon it is reflected in his great trilogy Wallenstein (1800) and in Maria Stuart (1800)
a bronzelike luster, sometimes with iridescence, occurring on certain minerals.
[1795–1805; < German: play of colors, glitter]
Johann Christoph Friedrich von, 1759–1805, German poet, playwright, and historian.