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Cobalt   /kˈoʊbˌɔlt/   Listen
Cobalt

noun
1.
A hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.  Synonyms: atomic number 27, Co.



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"Cobalt" Quotes from Famous Books



... tired with rapid travel, and about the middle of the afternoon the young man unsaddled and picketed the animal near a water-hole. He lay down in the shadow of a cottonwood, flat on his back, face upturned to the deep cobalt sky. Presently the drowse of the afternoon crept over him. The slumberous valley grew hazy to his nodding eyes. The reluctant lids ceased to open and he was ...
— A Texas Ranger • William MacLeod Raine

... instrument. This very curious optical phenomena has been investigated by Mr. Talbot and by Mr. Warrington. Perfectly dry sulphate of copper is white; the slightest moisture turns it blue. Muriate of cobalt is of a pale pink color; a very slight heat, by removing a little moisture, changes it to a green. These are a few instances selected from many which might ...
— The History and Practice of the Art of Photography • Henry H. Snelling

... efforts of concentration, protruded a thick and unsavory tongue. At the loose corners of Jake's mouth flecks of saliva gathered whitely; in the fleering light of the kerosene the shadows on his face were cobalt. The woman's face shone with drops of perspiration that formed slowly and rolled like a flash over her ...
— Mountain Blood - A Novel • Joseph Hergesheimer

... agree that the stone known as sapphire, if ground, could not produce translucent colour at all. The blue which Suger loved, and which is probably the same as that of these Chartres windows, cannot be made out of sapphires. Probably the "materia saphirorum" means cobalt only, but whatever it was, the glassmakers seem to agree that this glass of 1140-50 is the best ever made. M. Paul Durand in his official report of 1881 said that these windows, both artistically and mechanically, were of the highest ...
— Mont-Saint-Michel and Chartres • Henry Adams

... Loyalty Islands, Fortuna, and the New Hebrides group, have great wealth in the matter of resources. New Caledonia, a penal colony, has productive mines of chrome iron ore and copper. It is the source of a considerable supply of nickel and cobalt. A railway to the coast has been built for the ...
— Commercial Geography - A Book for High Schools, Commercial Courses, and Business Colleges • Jacques W. Redway

... sweet smell of vegetation drying in the sun. As she approached the other side, the blue sky curved down to meet the ocean on a far straight line. The yellow-green of the sea was set off by astonishing areas of clearest cobalt blue, and the flying spray from combers breaking for miles out on the North Shoals, caught the sunlight in a ...
— Where the Sun Swings North • Barrett Willoughby

... half-filled by The Infant's cobalt-blue, grey-corded silk limousine and a mud-splashed, cheap, hooded four-seater. In the back seat of this last, conceive a fiery chestnut head emerging from a long oat-sack; an implacable white face, with blazing ...
— A Diversity of Creatures • Rudyard Kipling

... onyx, topaz, and other stones, a kind of jade and of malachite, are found in a great many places. Copper exists in considerable quantities in the neighborhood of Dondon and Jacmel, and in the Cibao; silver is found near San Domingo, and in various places in the Cibao, together with cinnabar, cobalt, bismuth, zinc, antimony, and lead in the Cibao, near Dondon and Azua, blue cobalt that serves for painting on porcelain, the gray, black specular nickel, etc.; native iron near the Bay of Samana, in the Mornes-du-Cap, ...
— Atlantic Monthly, Vol. 9, No. 56, June, 1862 • Various

... richest ore of which we have any accounts. With very imperfect machinery, it yields upward of fifty per cent, and the proprietors are now working it, and are preparing to quadruple their force. Iron, copper, lead, tin, sulphur, zinc, platinum, cobalt, &c. are said to be found in abundance, and most of them are known to exist in various ...
— The Exploring Expedition to the Rocky Mountains, Oregon and California • Brevet Col. J.C. Fremont

... Looey, very sad, like they was closte personal friends of his'n. And he told me all about them and how Young Cobalt had done fur them. But from what I could make out it all happened away back in the early days. And shucks!—I didn't care a dern, ...
— Danny's Own Story • Don Marquis

... paper or vellum, so that the characters shall become visible only when subjected to the action of fire. Zaffre, digested in aqua regia, and diluted with four times its weight of water, is sometimes employed; a green tint results. The regulus of cobalt, dissolved in spirit of nitre, gives a red. These colors disappear at longer or shorter intervals after the material written upon cools, but again become apparent upon ...
— Selections From Poe • J. Montgomery Gambrill

... so incredibly loathsome, that's why!" Ihjel said. "These aboriginal hotheads have managed to lay their hands on some primitive cobalt bombs. They want to light the fuse and drop these bombs on Nyjord, the next planet. Nothing said or done can convince them differently. They demand unconditional surrender, or else. This is impossible ...
— Planet of the Damned • Harry Harrison

... agent used. For clear white glass, called flint glass, no color is added. The mixing of a copper salt with the sand gives a greenish tinge to the glass; amber glass is obtained by the addition of an iron compound; and a little cobalt in the mixture gives the finished bottle the clear blue tone that used to greet the waking eye as it searched the room for something to allay that morning's morning feeling. The flux used is old glass—bits of shattered bottles, scraps from the floor of the ...
— How To Write Special Feature Articles • Willard Grosvenor Bleyer

... in thickness; 3, a layer of snow conglomerated to a crystalline granular mass; and 4, common granular hardened snow. Layer 3 was full of small black grains, among which were found numerous metallic particles that were attracted by the magnet, and were found to contain iron, cobalt, and possibly nickel also. ...
— The Voyage of the Vega round Asia and Europe, Volume I and Volume II • A.E. Nordenskieold

... throat and cheeks white; while the breast is of a yellow brimstone hue, edged with a line of blood-red. The upper tail-coverts are greyish-white, and the under deep crimson. A large orange circle surrounds the eye, and within it is a second circle of cobalt-blue. A green ring incloses the pupil, with a narrow yellow ring ...
— The Western World - Picturesque Sketches of Nature and Natural History in North - and South America • W.H.G. Kingston

... evidence of abundant corals, cephalopods, gasteropods, lamellibranchs and other organic remains. Perhaps in other tracts of the Alps, as well as in the Carpathian range, similar shales, limestones and dolomites, though as yet unfossiliferous, but containing ores of silver, lead, mercury, zinc, cobalt and other metals, may be referable to ...
— Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 - "Destructors" to "Diameter" • Various

... Appliqe," i. 8) gives the following minima proportions in which metal may be worked on a grand scale, of course under the most favourable circumstances. The extremes are 0.25 (iron), and 0.00001 (gold); and antimony, bismuth, cobalt, and nickel are neglected, because the proportions ...
— The Land of Midian, Vol. 1 • Richard Burton

... over wide areas. The estimation of the prospective value of mines where continuity of production is dependent on reoccurrence of ore-bodies somewhat proportional to the area, such as these Mississippi deposits or to some extent as in Cobalt silver veins, is an interesting study, but one that offers ...
— Principles of Mining - Valuation, Organization and Administration • Herbert C. Hoover

... was reveling in that very joy, stretched prone upon the ground, blinking sleepily up at the sun and the cobalt sky, feeling my very hair grow, and health returning in warm, electric waves. I even dared to cross one leg over the other and to swing the pendant member with nonchalant air, first taking a cautious survey of the neighboring back windows to see if any one peeked. ...
— Dawn O'Hara, The Girl Who Laughed • Edna Ferber

... my little city from the sea on a summer's day, one sees only the tall, round clump of trees on the ramparts and, overtopping it, the old bell-tower with its fantastically shaped and ornamented stories and dome-top of deep cobalt blue. The land to either side is barely visible, and the green foliage flooded with pale sunshine seems to drift in the sun-mist on the grayish yellow waters. It is a dreamy little town, that once in Holland's prime had a short-lived ...
— The Bride of Dreams • Frederik van Eeden



Words linked to "Cobalt" :   metallic element, metal, smaltite, co



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