Definition of Indigo copper. Meaning of Indigo copper. Synonyms of Indigo copper

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Definition of Indigo copper

Indigo copper
Indigo In"di*go, a. Having the color of, pertaining to, or derived from, indigo. Indigo berry (Bot.), the fruit of the West Indian shrub Randia aculeata, used as a blue dye. Indigo bird (Zo["o]l.), a small North American finch (Cyanospiza cyanea). The male is indigo blue in color. Called also indigo bunting. Indigo blue. (a) The essential coloring material of commercial indigo, from which it is obtained as a dark blue earthy powder, with a reddish luster, C16H10N2O2, which may be crystallized by sublimation. Indigo blue is also made from artificial amido cinnamic acid, and from artificial isatine; and these methods are of great commercial importance. Called also indigotin. (b) A dark, dull blue color like the indigo of commerce. Indigo brown (Chem.), a brown resinous substance found in crude indigo. Indigo copper (Min.), covellite. Indigo green, a green obtained from indigo. Indigo plant (Bot.), a leguminous plant of several species (genus Indigofera), from which indigo is prepared. The different varieties are natives of Asia, Africa, and America. Several species are cultivated, of which the most important are the I. tinctoria, or common indigo plant, the I. Anil, a larger species, and the I. disperma. Indigo purple, a purple obtained from indigo. Indigo red, a dyestuff, isomeric with indigo blue, obtained from crude indigo as a dark brown amorphous powder. Indigo snake (Zo["o]l.), the gopher snake. Indigo white, a white crystalline powder obtained by reduction from indigo blue, and by oxidation easily changed back to it; -- called also indigogen. Indigo yellow, a substance obtained from indigo.
indigo copper
Covelline Co*vel"line (k?-v?l"l?n), Covellite Co*vel"lite (-l?t), n. [After Covelli, the discoverer.] (Min.) A native sulphide of copper, occuring in masses of a dark blue color; -- hence called indigo copper.

Meaning of Indigo copper from wikipedia

- Indigo is a term used for a number of hues in the region of blue. The word comes from the ancient dye of the same name. The term "indigo" can refer to...
- NH4MnP2O7 (PV16) manganic ammonium pyrophosphate. Organic pigments Indigo Copper phthalocyanine Aluminosilicate pigments Ultramarine (PB29): a synthetic...
- pigments are indigo, Prussian blue, and copper phthalocyanine. Historically lapis lazuli was important. Although sometimes considered a dye, indigo is a pigment...
- Copper monosulfide is a chemical compound of copper and sulfur. It was initially thought to occur in nature as the dark indigo blue mineral covellite....
- Human Line. Copper Canyon Press. 2007. ISBN 9781556592553. Like A Beggar. Copper Canyon Press. 2014. ISBN 9781556594649. Indigo. Copper Canyon Press...
- France. Impressions of seeds of Färberwaid (Isatis tinctoria L.) or German indigo, of the plant family Br****icaceae, have been found on pottery in the Iron...
- of colored metals, which can be treated to develop a black, or sometimes indigo, patina, resembling lacquer. Unpatinated shakudō visually resembles bronze;...
- of the oldest coupling reactions and is based on copper compounds like copper(I) chloride or copper(I) bromide and an additional oxidant like air. The...
- blue (also called Chinese purple and Chinese blue) are synthetic barium copper silicate pigments developed in China and used in ancient and imperial China...
- fire resistance safety standards, indigo-colored spun nylon or vinyl was used, with contrast-stitching and copper rivets helping to sell the effect.)...