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Purple gold (also called amethyst gold and violet gold) is an alloy of gold and aluminium rich in gold–aluminium intermetallic (AuAl 2). Gold content in AuAl 2 is around 79% and can therefore be referred to as 18 karat gold.
In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among native speakers of English. [2]
For treatments that change the natural color of gold, see Colored gold. For the element, see Gold. Gold, also called golden, is a color tone resembling the gold chemical element. The web color gold is sometimes referred to as golden to distinguish it from the color metallic gold.
Magenta is variously defined as a purplish-red, reddish-purple, or a mauvish–crimson color. On color wheels of the RGB and CMY color models, it is located midway between red and blue, opposite green. Complements of magenta are evoked by light having a spectrum dominated by energy with a wavelength of roughly 500–530 nm.
The standard HTML color purple is created by red and blue light of equal intensity, at a brightness that is halfway between full power and darkness. In color printing, purple is sometimes represented by the color magenta, or sometimes by mixing magenta with red or blue. It can also be created by mixing just red and blue alone, but in that case ...
Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The colloid is coloured usually either wine red (for spherical particles less than 100 nm) or blue-purple (for larger spherical particles or nanorods).
Not only is purple her favorite color, but purple ribbons are also bringing awareness to domestic violence. "We were praying that we'd get that closure if she was there. And obviously that didn't ...
The complement of any primary color can be made by combining the two other primary colors. For example, to achieve the complement of yellow (a primary color) one could combine red and blue. The result would be purple, which appears directly across from yellow on the color wheel.
In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, some of which humans perceive as similar to violet.
Purple of Cassius is a purple pigment formed by the reaction of gold salts with tin (II) chloride. It has been used to impart glass with a red coloration (see cranberry glass ), as well as to determine the presence of gold as a chemical test .