Diamondsprivate circulation, 1861 - 16 pàgines |
Des de l'interior del llibre
Resultats 1 - 4 de 4.
Pàgina 6
... subsequent ope- rations . When the diamond has received its general shape , it is sent into the mill to be finished , by cutting upon it the numerous small angular " facets , " as they are termed , which make up the surface . This is ...
... subsequent ope- rations . When the diamond has received its general shape , it is sent into the mill to be finished , by cutting upon it the numerous small angular " facets , " as they are termed , which make up the surface . This is ...
Pàgina 8
... subsequently proved beyond a doubt . If sufficient heat be applied , diamonds will completely con- sume , combining with oxygen to form carbonic acid , precisely like charcoal or coke in an ordinary furnace . There have been many ...
... subsequently proved beyond a doubt . If sufficient heat be applied , diamonds will completely con- sume , combining with oxygen to form carbonic acid , precisely like charcoal or coke in an ordinary furnace . There have been many ...
Pàgina 9
... subsequently splitting it into smaller sound and valu- able stones ; the principle of the opera- tion not being then generally known . Another use of the cleavage principle is in the preparation of diamond powder . Small diamonds of ...
... subsequently splitting it into smaller sound and valu- able stones ; the principle of the opera- tion not being then generally known . Another use of the cleavage principle is in the preparation of diamond powder . Small diamonds of ...
Pàgina 12
... subsequently came into the possession of the King of Portugal , who , in 1489 , being in want Upper Surface . of money , parted with it to a French trader . In the sixteenth century it found its way into the hands of a Huguenot nobleman ...
... subsequently came into the possession of the King of Portugal , who , in 1489 , being in want Upper Surface . of money , parted with it to a French trader . In the sixteenth century it found its way into the hands of a Huguenot nobleman ...
Altres edicions - Mostra-ho tot
Diamonds: Extracted from MacMillan's Magazine for January, 1861 (Classic ... William Pole Previsualització no disponible - 2018 |
Diamonds: Extracted From Macmillan's Magazine for January, 1861 (Classic ... William Pole Previsualització no disponible - 2016 |
Frases i termes més freqüents
acorns Amsterdam apex arches beautiful beds Borneo Brazilian mines Brazils brilliant diamonds called carat in weight Carbonado century cleavage plane cleaves collet colour colourless common glass contain respectively cut diamond Diamond cutting diamond district diamond powder discovery Dodecahedron duce eight emeralds ermine border exhibited extent facets finest flat base flaw form of brilliants French crown girdle gold hands hard hitherto IMPERIAL STATE CROWN India jewels known Koh-i-noor large brilliant large diamonds largest stone lately latter Lisbon lustre MAJESTY QUEEN VICTORIA Maltese crosses metal mica schist mineral mond Nassack octohedron ornament partly pear shape pearls phire pieces Pitt Portuguese possession preparation of diamond principle produce Professor Tennant pyramid refractive power Rock Crystal rose diamonds rough diamonds ruby Sancy sapphire scratch smaller solid figure specific gravity split stones found substance Table diamonds tions transparent true romance Upper Surface value of diamonds wheel white topaz workman
Passatges populars
Pàgina 15 - George IV. At the back is a sapphire of smaller size, and six other sapphires (three on each side), between which are eight emeralds. Above and below the seven sapphires are fourteen diamonds, and around the eight emeralds 128 diamonds.
Pàgina 15 - George IV. At the back is a Sapphire of smaller size, and six other Sapphires, three on each side, between which are eight Emeralds. " Above and below the seven Sapphires are fourteen Diamonds, and around the eight Emeralds, 128 Diamonds.
Pàgina 15 - Above the band are eight sapphires, surmounted by eight diamonds, between which are eight festoons, consisting of 148 diamonds. " In the front of the crown, and in the centre of a diamond Maltese cross, is the famous ruby, said to have been given to Edward, Prince of Wales, son of...
Pàgina 15 - Bridge, with jewels taken from old crowns and others furnished by command of Her Majesty. It consists of Diamonds, Pearls, Rubies, Sapphires, and Emeralds set in silver and gold : it has a crimson velvet cap with ermine border, and is lined with white silk. Its gross weight is 39 oz.
Pàgina 16 - Around this ruby, to form the cross, are seventy-five brilliant diamonds. Three other Maltese crosses, forming the two sides and back of the crown, have emerald centres, and contain respectively 132, 124, and 130 brilliant diamonds. Between the four Maltese crosses are four ornaments in the form of the French...
Pàgina 15 - AD 1367. This ruby was worn in the helmet of Henry V. at the Battle of Agincourt, AD 1415. It is pierced quite through, after the Eastern custom, the upper part of the piercing being filled up by a small ruby.
Pàgina 9 - Tracing this plane therefore to the exterior, he makes on the edge of the stone, precisely in that spot, a slight nick with another diamond. He then places a small knife in that nick, gives it a light tap with a hammer, and the stone at once cleaves in two, directly through the flaw. This operation, in daily practice in the Amsterdam works, is one of the most elegant and instructive processes in the whole range of mineralogy.
Pàgina 16 - From the upper part of the arches are suspended four large pendent pearshaped pearls, with rose diamond caps, containing twelve rose diamonds, and stems containing twenty-four very small rose diamonds. Above the arch stands the mound, containing in the lower hemisphere...
Pàgina 9 - The diamond, therefore, as far as destructibility by abrasion is concerned, defies all nature. This quality renders it of considerable value for other purposes than ornament — as for cutting glass, and for working other stones, for the pivots of watch-work, &c. But, although the diamond is so hard, it is very easily broken, and, indeed, by a particular knack, it may even be cut with a common pen-knife. This apparent anomaly is due to what is called its cleavage, a result of the crystalline structure....
Pàgina 16 - The total number of diamonds in the arches and acorns is one hundred and eight brilliant, one hundred and sixteen table, and five hundred and fifty-nine rose diamonds. From the upper part of the arches are suspended four large pendant pear-shaped pearls, with rose diamond caps, containing twelve rose diamonds, and stems containing twenty-four very small rose diamonds.