the universal glazingtool, for cutting and setting glass.
This has a small thin roller pivoted at its lower extremity, which in its passage over the glass separates the particles in a manner similar to the diamond.
The spatula at the other end is used for puttying, etc.
The diamond is crystallized carbon.
Diamonds were first brought to Europe from the mine of Sumbalpoor.
The Golconda mines were discovered in 1534.
The mines of Brazil in 1728.
Those in the Ural in 1829.
The great Russian diamond weighs 193 carats; cost, £ 104,166 13 s. 4 d. in 1772.
The Pitt diamond weighed 136 carats; sold to the king of France for £ 125,000, in 1720.
The Koh-i-noor was found in 1550.
It belonged in turn to Shah Jehan, AurungZebe, Nadir Shah, the Afghans, Runjeet-Singh, and Queen Victoria, 1850.
It originally weighed 800 carats, was cut down to 289 carats by an unskilful Italian, and then to 102 1/4 carats to perfect its shape.
Pliny speaks of adamant as the hardest o