How to use Cobalt in a sentence

Looking for sentences and phrases with the word Cobalt? Here are some examples.

Sentence Examples She waved at Pearl and wandered back to the Cobalt Castle, glad to be free of her clinginess for a little while. Cobalt blue water lies around every bend and at dawn you'll have the chug chug of the lobster fleet for an alarm clock. Cobalt is used in high-speed steels and increases the red hardness so that they can be used at higher operating temperatures. Mel was clambering down a gentle slope, loosening bits of rocks and soil, towards what he supposed was the Cobalt River. Cobalt is found in the minerals cobaltite, smaltite and erythrite. Cobalt 60 and Cesium 137 are the radiation sources used to irradiate food. In aug. 2003, Muller said he believed Cobalt was merely a holding facility. Cobalt is incorporated into the electrolyte in addition to the cerous ion. By answer, he related a colorful story describing his group's original, joint staking of the claims and then waiting for the train to Cobalt to record them. Seven years ago, a chevy Cobalt with a defective ignition switch killed two teenage girls. In fact, four of 20 cells at Cobalt were found to have bars across the cell to allow this. Cobalt Business Park, the largest office park in the UK, is at Wallsend, on the former site of Atmel, and is the home of North Tyneside Council. Featuring a finned frame adapter for effective heat dissipation, Magnatex MPH Pumps utilize rare earth Samarium Cobalt magnets. Simon Cunningham, who set up Flyingfish Design Consultancy in Northumberland over 10 years ago, has moved on to the Cobalt Park, North Tyneside. It makes a small car, the Chevy Cobalt, which sips petrol in moderation and is therefore selling well. Cobalt blue was considered as a precious commodity, with a value about twice that of gold. Cobalt chromium alloy strengthens the stent and allows for strut thickness while maintaining radiopacity. Cobalt 60 gives off high energy photons, called gamma rays, which can penetrate foods to a depth of several feet. The National Automobile Dealers Association has renewed its exclusive endorsement of The Cobalt Group's comprehensive e-business packages for the third straight year. Founded in 1970, EEC is a US supplier that develops and produces custom Samarium Cobalt and Neodymium-Iron-Boron sintered permanent magnets, assemblies and systems. Show More Sentences A facility on this principle was built on the Montreal River at Ragged Shutes near Cobalt, Ontario in 1910 and supplied 5,000 horsepower to nearby mines. The staff at Hewlett Packard, based at the Cobalt Business Park in North Tyneside, are planning to work to rule next Thursday, with a full walk-out on Friday. Simon Cunningham set up Flyingfish Design Consultancy in Northumberland over 10 years ago and has now taken space in part of the Cobalt Business Exchange in North Tyneside. Materials that are more biocompatible, such as cobalt chromium or titanium alloys, are used for permanent implants. Dark green, ocean blue, metallic greys and whites, black and vibrant flashes of cobalt blue and acid yellow are the season's colours. In pursuance of this, a firm request would be made by me to all Member Governments to apply such a ban especially to Katangese copper and cobalt. The distressed surfaces, with their flinty earth tones, cobalt blues and nacreous whites, hold light like rough alabaster. The list includes sodium, potassium, calcium, magnesium, manganese, iron, cobalt, copper, zinc, and molybdenum. Grouped on window sills or mantels, in forcing jars of crystal, cobalt, amethyst or green-colored glass, hyacinths enhance the holiday mood. It was mixed in a water-based solution of cobalt thiocyanate, ferric chloride, and various acids. The most common trace element deficiencies in cattle are copper, selenium, iodine and cobalt. The blue colour of smalt derives from the addition of cobalt oxide to a potash glass melt during manufacture. He had blond-hair with a slight tinge of red and bright cobalt blue eyes that took her breath away. The cobalt plant is part of a large metallurgic concern that produces fine cobalt metal powders, cobalt oxides, and cobalt salts. But materials such as iron, or cobalt have an unequal numbers of up and down electron spins and are magnetic. Common hydroprocessing catalysts consist of an aluminum oxide carrier on to which the metals molybdenum and nickel or cobalt are added. Traditional siccatives use lead, manganese or cobalt metals to promote oxidation whereas alkyd resin is used in modern driers. To make smalt, cobalt ore is smelted, and the resulting cobalt oxide poured into molten glass. Dissolve the cobalt in the water and add the sugar, saturate unsized paper in the solution, and hang up to dry. A cobalt blue sea buffers snoozy Norfolk Island against the tumultuous world beyond it. Show More Sentences Mild cobalt deficiency is easily confused with unthriftiness caused by underfeeding, heavy worm burdens or selenium-responsive illthrift. Mineral deposits include oil and natural gas, gold, uranium, bauxite, nickel, and cobalt. The QNI Yabulu refinery is part of BHP-Billiton Stainless Steels and processes nickel and cobalt. Greens are verdant and jade, while blues blend in various cobalt combinations. The next step is to paint some winter weeds around her, and put a nice wet wash of burnt umber and cobalt blue over the wet ground of her body. Crabs, for example, when examined, show up to 20 times the normal levels of carcinogenic metals such as cadmium and cobalt. Lord Ganesha gets a glossy finish, thanks to some fine handwork and the addition of oxides like cobalt and antimony. For example, tubing made from cobalt alloys can be used in the production of rigid or stiff endoscopes for use in certain diagnostic procedures. In the cobalt light, their cassocks slapped softly against their trouser legs. Groundcover plantings of smoky mauve heathers come alive in spring with surrounding sweeps of cobalt blue grape hyacinths. The slow growth rate is thought to enhance the absorption of heavy metals like copper and cobalt from sea water. Today he is wearing a hand-knitted turquoise sweater, dark blue cords, lilac socks and a striped shirt of cobalt and pink. Nickel is also used to make superalloys, alloys made primarily of iron, cobalt, or nickel. Investment cast structural components are produced in a wide range of air-melted steels, cobalt alloys and vacuum cast nickel-based superalloys. Decorative embellishments consist of two cobalt blue swags extending from a central round cobalt blue floral motif to the left and right handles. At temperatures below 417 degrees Celsius cobalt exhibits a hexagonal close-packed structure. They blended and heated plutonium with gallium and cobalt and then slowly cooled the molten mixture. This packing arrangement is also observed for many metals, including rubidium, osmium, cobalt, zinc, and cadmium. Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore. On a walk through the five-acre garden you encounter great bushes of Blue Bonnet, whose huge flower heads vary from powder blue to cobalt. Show More Sentences What snatches of blue sky she could see were deepening from azure to cobalt and she thought she saw the first star twinkling already. It was of dark cobalt, running to purple, and had golden thread work all along the hem and sleeves. It was February with cobalt skies, snappy air, and a fresh blanket of snow. The cloudless sky was the color of cobalt, so blue he felt he could breathe it in and out and become a part of it. This past week in the forest park, the fiery foliage set against cobalt skies was a sight to behold. And then came the third line, a collection in shades of aquamarine, cobalt, ethereal blue, sky blue, and dream blue. I got out my sketch book and showed him some of the paintings I'd done of lizard head spires piercing skies of cobalt and turpentine. Not only were his eyes lacking their normal cobalt hue and his pupils disturbingly restricted but now his eyes were blood shot as well. He lifted up his cobalt eyes to his friend for only a split second and then glanced back down. He muttered something in angry fluent French, as he tilted his head back and looked up at the star-dusted cobalt sky. He left a tip and walked outside to his cobalt truck, driving away only a few moments later. Side plates at each place setting are coloured a brilliant turquoise or patterned in cobalt or shaped like river boats. Other houses' bathrooms are characterised by bright cobalt blues or pearl whites. His gaze caught mine and for a second his cobalt eyes were a mirror for the sun. Low sitting tables, strewn with crimson rose petals and cobalt blue sequence beads welcome guests to dinner. It wasn't even a subtle, navy blue, or a blue mixed in slightly with another color, it was a deep, brilliant cobalt blue. It is a beautiful day too, the sky a vivid cobalt blue, the sun warm and energising. It is almost impossible to avoid the gaze of the distinctive cobalt blue traffic cameras that are springing up along trunk routes. Her little dragon was cobalt blue with a grey spot on his muzzle, an adorable and shiny little fellow. Now the storm had passed, the sky was a pure cobalt blue with a white sun and the world was as clean as a blank sheet of paper. Show More Sentences Primary colours are a big blast from the past, especially cobalt blue and fuchsia pink. Hydrated cobalt oxide or cobaltic hydroxide is produced by adding sodium hydroxide to this solution. We produce 300 tons of cobalt oxide and 180 tons of cobaltous oxide yearly, one of the largest production and sale bases in China. It is attributed to Joseph Henry Remmey, who is known for similar elaborately incised cobalt blue decoration, especially of stylized birds. It was found that a combination of cobalt or iron phthalocyanine and sodium ascorbate has high in vitro and in vivo antitumor activity. It states that the main products exported were manufactured goods, refined copper, cobalt, precious stones, cotton yarn and Portland cement. The effect built into cheaper cameras include things like sepia and cobalt tone, posterizing, solarizing and so forth. The flight feathers are black, and the upper tail coverts and rump area are cobalt blue. The actual increase in cobalt could be entirely attributed to the cobalt content of the cyanocobalamin that was added to the infusion. Uraninite occurs with cobalt, nickel, arsenic, and silver minerals in a carbonate gangue at the Solitaria mine, Jaguel district, Argentina. The reverse of the vessel bears brushed cobalt blue floral decoration at the shoulder and a continuation of the flowers that appear on the front. The mine has potential to produce 106,000 tonnes per year of copper, gold, uranium and cobalt over its 24-year life. The egg is enamelled in cobalt blue on a shell of guilloche sterling silver. As you know copper and cobalt prices have dropped to their lowest levels in many years. Its compounds tend to be found with ores of other metals, such as lead, silver, gold, and cobalt. Try white lisianthus, ruby geraniums, red anemones, cobalt delphiniums, or pale blue hollyhocks. We added copper, cobalt, selenium, molybdenum, etc to the deficient soils and transformed the plant and animal health. The crystal is a combination of antimony and cobalt known as a skutterudite. Aalto's trademark ribs of cobalt blue tiles impart a lively rhythm to the angled wall that faces the bank of elevators. From time to time as a gap in the trees appears I catch sight of this glistening stretch of cobalt blue water below. Show More Sentences They left us as the cobalt blue waters of the deep changed to aquamarine above the massed reefs of coral. Threads of rose and gold stretched across the sky as navy faded into cobalt. In the late 1990s, artisanal mining for cobalt was allowed, leading to uncontrolled and dangerous mining activities. One of the strongest magnets available is made from an alloy of samarium and cobalt. Examples of transition metals include vanadium, chromium, iron, cobalt, manganese, nickel, scandium, yttrium, zirconium, silver, and gold. Iron, cobalt and nickel are the best known metallic magnets, and their magnetic properties are governed by the conduction electrons that are free to move throughout the metal. Did you know that these jeans were not just blue, but cobalt blue? The purple on his surcoat made his striking cobalt eyes seem deep violet. I can't wait to hang up my cobalt blue shower curtain with the gold stars. Green palms and tree canopies and a cobalt blue sea spread out before us, making us feel more like birds swooping in on a coastal breeze than landlocked tourists. The miniature is framed by a row of thirty large rose-cut diamonds and surrounded by a design of vine scrolls and bunches of grapes in cobalt blue champleve enamel. The company's boffins have essentially developed a material substrate into which magnetic elements made of cobalt, cobalt alloys, or nickel compounds can be embedded. Each bend in the road reveals yet another breathtaking panorama of the Dinara Mountains that sweep down to the Adriatic, a deep cobalt sea under an azure sky. I strip them of their gray shifts and garb them in scarlet and cobalt. We are already exporting gold and we have substantial resources of silver, uranium, nickel and cobalt, the deposits of which need further investigation. They were not blue, they were fiery cobalt, intense indigo, smoldering sapphire, and they could change their appearance with her every varying emotion. The sea reflected our good fortune in hues of glassy green, turquoise and cobalt blue and into this unearthly vision we quietly launched our sailing barque. But a BBC World Service correspondent who visited the area says thousands of illegal miners are extracting material containing cobalt, copper, platinum and uranium. One vessel, a stoneware porringer with twisted handles, painted cobalt blue, is a form uncommon for the time, and has not appeared at other American colonial sites. Above, the serrated edge of the granite ridge cuts through the cobalt sky. Show More Sentences The neck is longer and more elegant, the underglaze blue cobalt lighter and purer in tone, and the porcelain itself whiter and with fewer occlusions. This pure cobalt siccative accelerates the oxidative drying of the oil. The softly tailored look is also very much in this season with glowing colours such as cobalt and rich greens coupled with subtly shaded creams and browns. The primary ores of cobalt are cobaltite, erythrite, and smaltite. His stormy cobalt eyes glanced down at her and he sighed again. Today he was wearing a cobalt button-down casual shirt with a collar neck. We are already exporting gold and we have substantial resources of silver, uranium, nickel, cobalt, the deposits of which need further investigation. The mining company will host an international meeting for all agents involved in the handling and transportation of its copper and cobalt up to the final destination. Mining asteroids is about iron and nickel as well as cobalt and platinum-group metals, but also water and energy, he says. It's got a walnut stock, cobalt blue steel, and a hair trigger. In both cases, cobalt blue was used to accent certain elements including the bells, the man's shoes, shirt, and hat, and the cantons of the flags. There was so much cobalt oxide from Persia that the porcelain center Jingdezhen had a plentiful supply for decades after the voyages. Porcelain wares may be decorated under the glaze using pigments that include cobalt and copper or over the glaze using coloured enamels. The tubes simultaneously acquired crystalline cores of iron, cobalt, or iron carbide, a compound that hardens steel. Dawn Reynolds was an eighteen-year-old alabaster beauty with cobalt eyes and the figure of a ripe voluptuary. Coal combustion produces emissions containing aluminium, arsenic, chromium, cobalt, copper, iron, mercury, selenium, and uranium. The elliptical corral was created using cobalt atoms precisely placed by a scanning tunneling microscope on a copper surface. The va-va-voom leather is polished off with a chic pair of cobalt blue trousers and black pointed pumps. Also available are Borazon wheels for HSS and cobalt, and diamond wheels for carbide. For example, sugar beets appear to require boron, and legumes require cobalt. Show More Sentences The vents create sulfide deposits, which contain precious metals such as silver, gold, copper, manganese, cobalt, and zinc. In 2008, Bloomberg claimed child labour in copper and cobalt mines that supplied Chinese companies in Congo. Clean with mineral spirits instead of highly acidic detergents to decrease the opportunity for cobalt leaching. That was when General Motors was preparing to roll out the 2005 cobalt. Biker jackets in red, black and cobalt blue and there were military-style car coats in grey. But Rembrandt was very shrewd, Eric tells me, and would use the much cheaper cobalt pigment, smalt, as an economical substitute. As such, iron, cobalt, and nickel are sometimes grouped together as the iron triad. From the 16th century, local sources of cobalt blue started to be developed, although Persian cobalt remained the most expensive. Quasicrystalline materials typically consist of aluminum mixed with metals such as manganese, cobalt, and nickel. The process is economically competitive, using transition metal catalysts along the way, such as inexpensive nickel and cobalt complexes. The Tang pieces are not porcelain however, but rather earthenwares with greenish white slip, using cobalt blue pigments. The aim of the research was to synthesize cobalt nanoparticles by using ferritin protein cage. High temperatures require expensive alloys made from nickel or cobalt, rather than inexpensive steel. French Polynesia's seafloor contains rich deposits of nickel, cobalt, manganese, and copper that are not exploited. The color palette transitions from indigo blue, cobalt blue, pure blue, sky blue, ultramarine, Egyptian Blue, to a deep, rich, Prussian blue. Others are ammonium vanadate, vanadyl acetylacetonates, molybdenum paramolybdate, cobalt octylate, etc. Magnetic materials refer primarily to the materials with direct or indirect magnetism composed of transition elements like ferrum, cobalt, nickel and their alloys. They emit penetrating gamma radiation that is much more of a hazard than the alpha or beta radiation from cesium, cobalt, strontium or polonium,' LaMastra said. Canadian mining firm Sherritt, for example, co-owns the world's biggest finished nickel and cobalt project from lateritic ore with Sumitomo, Korea Resources and SNC-Lavalin. As previously indicated, the cobalt borides are chemically stable. Show More Sentences A 247 all-suite property, its spacious junior and luxury suites are equipped with full kitchenettes and private balconies overlooking the tranquil, cobalt Pacific Ocean. Blue and white decoration first became widely used in Chinese porcelain in the 14th century, after the cobalt pigment for the blue began to be imported from Persia. Apart from its hydrocarbon resources, Kazakhstan is rich in uranium, gold, iron ore, chrome ore, nickel, cobalt, lead, uranium, bauxite and aluminium oxide. Materials that can be used in soluble form including copper sulphate, cobalt sulphate, iron sulphate, manganese sulphate, ferric chloride and silver nitrate. Sample preparation and assays were carried out by SGS Lakefield in South Africa using pyrosulphate fusion XRF and thus reflect total copper and cobalt contents. The system offers new and innovative polyaxial and uniplanar pedicle screw designs, both of which incorporate a triple lead thread and cobalt chrome tulip head. Key colours include flashes of red, cobalt blue and fuchsias while leopard prints, polka dots and dogtooth prints combine for the perfect clashing look. It is exceptionally rich in minerals, containing large deposits of gold, diamonds, and ores of manganese, lead, zinc, nickel, cobalt and molybdenum. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. Previously, iron, cobalt and nickel were the only elements to be room-temperature ferromagnets, materials that retain magnetism after exposure to a magnetic field. Pyrometallurgical testwork at CSIRO was initiated to investigate the suitability of IsaSmelt Technology for recovery of nickel and cobalt from different laterite ore types. Some more modern steels include tool steels, which are alloyed with large amounts of tungsten and cobalt or other elements to maximize solution hardening. Examples from Classical Literature In this trial the glass of Borax will be nearly of the same colour as the true glass, or smalt, made with the same Cobalt. The report represents a thorough study of Cobalt, covering both global and regional markets. Cobalt alloys are frequently used in the aerospace industry, such as the hot-gas section of turbine engines, explained Leto. The polycarbonate polarized lenses are available in Hobie Grey, Hobie Copper, and Hobie Sightmaster, with Blue Cobalt and Sea Green mirrored lens coatings also available. The cobalt of Saxony is sent to Pekin, and the platina of choco, to all parts of the world. The first practical use of cobalt was in the form of zaffre or cobalt blue. It is only when he is seen with the sun shining upon him that the cobalt blue patches in his plumage are noticed. It is also used to form a resist-paste in calico printing, and in the manufacture of cobalt blue. The distinguishing feature of the decoration is the combination of violet from manganese with cobalt blue. Very good results in soap may be obtained by mixing a fast blue, as ultramarine or cobalt blue, with a red as rhodamine or eosine. The smalt is usually composed of one part of calcined cobalt, fused with two parts of powder of flint and one of pot-ash. It is generally found with cobalt in the cobaltic ores of Saxony and England. The calx of cobalt is of a deep blue colour, which, when fused, makes the blue glass called smalt. The cobalt ores at these localities occur with pyrites and chalcopyrite as bands in gneiss. Oxide of cobalt in very small quantities yields, with silicic acid, an intensely blue silicate. It was smaltite, an ore of the metal cobalt, closely resembling many of the silver ores. That which bears the poetic name of star-stone, stellite, is composed of chromium, cobalt and tungsten in varying proportions. A solution of muriate of copper forms a yellow and sympathetic ink, and acetate of cobalt a rose or purple. The permeability of cobalt, both annealed and unannealed, was always diminished at the low temperature. The elements iron, cobalt, and nickel form a group in the eighth column of the periodic table. Show More Sentences Following iron, nickel, and cobalt in the eighth column of the periodic table are two groups of three elements each. The lower ovoids in ruthenium are identical in composition, with those of iron, cobalt and nickel and may be studied under Iron. This pigment was cobalt blue, indicating a considerable confusion of these minerals. It is the source of a considerable supply of nickel and cobalt. A little oxide of cobalt or zaffre is frequently added to alter the shade. Give them a modern update and add a touch of colour with pops of cobalt blue an emerald green. They found that the cobalt oxide anode has about twice as great a storage capacity as a traditional carbon-based anode does. The very sky seemed pitiless in the intensity of its cobalt. Let us suppose that we make a tint by adding white to cobalt blue. A bag was filled with the crustaceae, whose shells were of a cobalt blue. The ores have a high content of cobalt and also carry precious metals. The regulus of cobalt, dissolved in spirit of nitre, gives a red. Downstream processing testwork programs to recover the nickel and cobalt from leached slurries have commenced with initial results expected in April. In addition to this, due to the price crisis and concern over the continuity of the supply of cobalt adhesion promoter, it is necessary to seek suitable alternatives. Find more words! Another word for Opposite of Meaning of Rhymes with Sentences with Find word forms Translate from English Translate to English Words With Friends Scrabble Crossword / Codeword Words starting with Words ending with Words containing exactly Words containing letters Pronounce Find conjugations Find names From Afrikaans From Albanian From Amharic From Arabic From Armenian From Azerbaijani From Basque From Belarusian From Bengali From Bosnian From Bulgarian From Catalan From Cebuano From Chichewa From Chinese From Corsican From Croatian From Czech From Danish From Dutch From Esperanto From Estonian From Farsi From Filipino From Finnish From French From Frisian From Galician From Georgian From German From Greek From Gujarati From Haitian Creole From Hausa From Hebrew From Hindi From Hmong From Hungarian From Icelandic From Igbo From Indonesian From Irish From Italian From Japanese From Javanese From Kannada From Kazakh From Khmer From Korean From Kurdish From Kyrgyz From Lao From Latin From Latvian From Lithuanian From Luxembourgish From Macedonian From Malagasy From Malay From Malayalam From Maltese From Maori From Marathi From Mongolian From Burmese From Nepali From Norwegian From Polish From Portuguese From Punjabi From Romanian From Russian From Samoan From Scots Gaelic From Serbian From Sesotho From Shona From Sinhala From Slovak From Slovenian From Somali From Spanish From Sundanese From Swahili From Swedish From Tajik From Tamil From Telugu From Thai From Turkish From Ukrainian From Urdu From Uzbek From Vietnamese From Welsh From Xhosa From Yiddish From Yoruba From Zulu To Afrikaans To Albanian To Amharic To Arabic To Armenian To Azerbaijani To Basque To Belarusian To Bengali To Bosnian To Bulgarian To Catalan To Cebuano To Chichewa To Chinese To Corsican To Croatian To Czech To Danish To Dutch To Esperanto To Estonian To Farsi To Filipino To Finnish To French To Frisian To Galician To Georgian To German To Greek To Gujarati To Haitian Creole To Hausa To Hebrew To Hindi To Hmong To Hungarian To Icelandic To Igbo To Indonesian To Irish To Italian To Japanese To Javanese To Kannada To Kazakh To Khmer To Korean To Kurdish To Kyrgyz To Lao To Latin To Latvian To Lithuanian To Luxembourgish To Macedonian To Malagasy To Malay To Malayalam To Maltese To Maori To Marathi To Mongolian To Burmese To Nepali To Norwegian To Polish To Portuguese To Punjabi To Romanian To Russian To Samoan To Scots Gaelic To Serbian To Sesotho To Shona To Sinhala To Slovak To Slovenian To Somali To Spanish To Sundanese To Swahili To Swedish To Tajik To Tamil To Telugu To Thai To Turkish To Ukrainian To Urdu To Uzbek To Vietnamese To Welsh To Xhosa To Yiddish To Yoruba To Zulu English French Afrikaans Word Albanian Word Arabic Word Bengali Word Chinese Word Croatian Word Czech Word Danish Word Dutch Word English Word Finnish Word French Word German Word Greek Word Hindi Word Hungarian Word Icelandic Word Indonesian Word Italian Word Japanese Word Korean Word Latin Word Malay Word Malayalam Word Marathi Word Nepali Word Norwegian Word Polish Word Portuguese Word Romanian Word Russian Word Serbian Word Slovak Word Spanish Word Swahili Word Swedish Word Tamil Word Telugu Word Thai Word Turkish Word Ukrainian Word Uzbek Word Vietnamese Word Welsh Word All words 2-letter words 3-letter words 4-letter words 5-letter words 6-letter words 7-letter words 8-letter words 9-letter words 10-letter words 11-letter words 12-letter words 13-letter words 14-letter words Plural of Singular of Past tense of Present tense of Verb for Adjective for Adverb for Noun for Meaning of name Origin of name Names meaning Names starting with Names of origin Cobalt Use * for blank tiles (max 2) Advanced Search Advanced Search Use * for blank spaces Advanced Search Advanced Word Finder Nearby Words cobalt cobalamin cobaea COB cob coaxingly cobaltic cobaltite cobb cobbed cobber cobble