Diamondsprivate circulation, 1861 - 13 pàgines |
Des de l'interior del llibre
Resultats 1 - 4 de 4.
Pàgina 5
... easily recognised by those acquainted with them . The process of working is carried on as long as the dry weather lasts , namely , from April to the middle of October , all vestiges of the diggings being soon destroyed by the succeeding ...
... easily recognised by those acquainted with them . The process of working is carried on as long as the dry weather lasts , namely , from April to the middle of October , all vestiges of the diggings being soon destroyed by the succeeding ...
Pàgina 6
... easily fusible , and yet hard enough to retain the stone firmly in its position ; this is fixed in a moveable handle , which is again attached to a small frame . The workman , having first heated the metal to a soft state , beds the ...
... easily fusible , and yet hard enough to retain the stone firmly in its position ; this is fixed in a moveable handle , which is again attached to a small frame . The workman , having first heated the metal to a soft state , beds the ...
Pàgina 9
... easily broken , and , indeed , by a particular knack , it may even be cut with a common pen - knife . This appa- rent anomaly is due to what is called its cleavage , a result of the crystalline structure . Many well - known substances ...
... easily broken , and , indeed , by a particular knack , it may even be cut with a common pen - knife . This appa- rent anomaly is due to what is called its cleavage , a result of the crystalline structure . Many well - known substances ...
Pàgina 11
... easily . scratched by it . It is also much inferior in brilliancy and in specific gravity . 3. Paste . This , which is a glass prepared with metallic oxides , can be made equal to diamond in refractive power , and therefore can be given ...
... easily . scratched by it . It is also much inferior in brilliancy and in specific gravity . 3. Paste . This , which is a glass prepared with metallic oxides , can be made equal to diamond in refractive power , and therefore can be given ...
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 facets finest flat base flaw form of brilliants girdle gold hands hard hitherto IMPERIAL STATE CROWN India jewels known Koh-i-noor large brilliant large diamonds largest stone lately latter Lisbon LONDON AND MIDDLESEX 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 principal produce Professor Tennant pyramid refractive power Rock Crystal rose diamonds rough diamonds ruby Sancy sapphire scratch smaller solid figure specific gravity split substance Table diamonds tions transparent true romance Upper Surface value of diamonds wheel white topaz WILLIAM POLE workman
Passatges populars
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 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 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.
Pàgina 12 - King of ^ortugal, who, in 1489, being in want of money, parted with it to a French trader. In the sixteenth century it found its way into the hands of a Huguenot nobleman, the Baron of Sancy, who happened to be in Soleure when King Henry III. was trying to negotiate a loan. Sancy offered him, as a true subject, the diamond, and his offer was accepted ; but the messenger who was entrusted to convey it to the king (some accounts say Sancy himself) was waylaid and murdered, but had time before his death...
Pàgina 16 - ... rose diamonds. From the Maltese crosses issue four imperial arches composed of oak leaves and acorns, the leaves containing...
Pàgina 5 - ... private individuals, who carry on the workings at their own risk and profit. Slave labour is still employed, but all possible precautions are taken to prevent dishonesty. Thefts are severely punished, and rewards are offered for integrity and success in working. The slave who finds a diamond of 17 J carats, is crowned with a wreath of flowers, and led in procession to the overseer, who gives him his freedom accompanied with a new suit of clothes, and permission to work for his own profit ; minor...
Pàgina 12 - Star of the South." Under Surface. Upper Surface. The " Sancy " diamond, of 5Ц carats, has a singular history. It came originally from India, and, about the fifteenth century, was in the possession of the luxurious Duke of Burgundy, Charles the Bold, who wore it, probably as a talisman, in the unfortunate battle of Nancy, in Switzerland, where he was killed. A common Swiss soldier, who discovered the body in a ditch, found the jewel in the clothes, and, not knowing its value, sold it for a florin...
Pàgina 10 - The cause of the wonderful brilliancy of the diamond is not popularly known. It has no inherent luminous power ; it is simply transparent, like common glass, and yet, if the latter were cut into the form of a brilliant, it could no more be mistaken for a real one than for a sapphire or an emerald. The secret, therefore, of the brilliancy of the diamond must lie in something other than its clearness or its transparency. It is owing to its great refractive power. 'When rays of white light pass through...
Pàgina 11 - Braganza" found in Brazil in 1741, and preserved, in its rough state, in the Royal Treasury at Lisbon. It is as large as a hen's egg, and weighs 1680 carats ; but doubts are entertained whether it may not be in reality only a white topaz and no diamond at all ; a supposition which, as the Portuguese Government decline to allow it to be cut or sufficiently examined, would appear quite possible. The largest authenticated diamond known is that of the Rajah of Mattan in Borneo.