Search results
Results From The WOW.Com Content Network
The alexandrite variety displays a color change dependent upon the nature of ambient lighting. Alexandrite results from small scale replacement of aluminium by chromium ions in the crystal structure, which causes intense absorption of light over a narrow range of wavelengths in the yellow region (520–620 nm ) [ 10 ] [ 11 ] of the visible ...
The Alexandrite effect has also been observed in some other minerals, such as fluorite, sapphire, kyanite, monazite, spinel, garnet, tourmaline, and rare-earth oxalates. Not to be confused with the alexandrite effect, some minerals also exhibit pleochroism. The former is a response to different wavelengths of light in general, the latter an ...
Download QR code; Print/export ... Synthetic alexandrite is an ... Synthetic corundum laced with vanadium to produce the color change. This alexandrite-like sapphire ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Colors are an important part of visual arts, fashion, interior design, and many other fields and disciplines. The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch ...
The pink color of tourmalines from many localities is the result of prolonged natural irradiation. During their growth, these tourmaline crystals incorporated Mn 2+ and were initially very pale. Due to natural gamma ray exposure from radioactive decay of 40 K in their granitic environment, gradual formation of Mn 3+ ions occurs, which is ...
Neodymium may be used to color glass in shades ranging from pure violet through wine-red and warm gray. [56] The first commercial use of purified neodymium was in glass coloration, starting with experiments by Leo Moser in November 1927. The resulting "Alexandrite" glass remains a signature color of the Moser glassworks to this day.
This is an accepted version of this page This is the latest accepted revision, reviewed on 11 January 2025. Colors are an important part of visual arts, fashion, interior design, and many other fields and disciplines. The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch ...
Number Sample Colour name Description, examples RAL 1000: Green beige: RAL 1001: Beige: RAL 1002: Sand yellow: Vehicles of the Afrika Korps 1941–1943 : RAL 1003: Signal yellow: Latvian Pasažieru vilciens (Vivi) train main livery colour