chlorophane
Jump to navigation
Jump to search
English[edit]
Etymology[edit]
Ancient Greek χλωρός (khlōrós, “light green”) + φαίνω (phaínō, “show, shine”). Compare French chlorophane.
Noun[edit]
chlorophane (countable and uncountable, plural chlorophanes)
- (mineralogy) A variety of fluorspar, which, when heated, gives a striking emerald-green light.
- 2013, Jack DeMent, Handbook of Fluorescent Gems and Minerals - An Exposition and Catalog of the Fluorescent and Phosphorescent Gems and Minerals, Including the Use of Ultraviolet Light in the Earth Sciences, Read Books Ltd, →ISBN:
- CHLOROPHANE. The Amelia Court House, Va., locality yields a bluegreen fluorescing chlorophane. Kunz and Baskerville qualitatively studied the emission from Chlorophane in 1903. (See also the discussion for Fluorite which is also […]
- 1904, Knowledge...: A Monthly Record of Science, page 72:
- Chlorophane is the name given to those varieties of Fluorite (Fluorspar Calcium Fluoride), which possess to a noticeable extent the property of “thermo-luminosity ," that is to say, of spontaneous_' emitting light when heated. The temperature […]
- 1851, The Edinburgh New Philosophical Journal: Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts, page 94:
- the light from chlorophane is incomparably less intense than that from a common lamp. For there can be no doubt that each of the ten discharges gave a light which lasted brilliantly for six seconds, and upon the whole was equal in duration […]
- (biology) The yellowish-green pigment in the inner segment of the cones of the retina.