You will need
- - homemade melting apparatus
- - 6 g powder oxy aluminum
- - 0.2 g of hydroxy chromium
All determined to grow a precious stone in the home it is best to use the method of Auguste Vernale, because it is the most affordable for the common man. This method is known, scientists have developed more than 100 years ago, and it allows you to grow a ruby crystal weighing 20-30 carats for a mere 2 – 3 hours. In General, currently Vernale grow single crystals of hundreds of titles, mostly in laboratories, on production. But nothing prevents you to organize this process and in your own kitchen.
Pitch setup for growing monocrystals by method of Vernale. If desired, and some persistence it will not be difficult. The apparatus consists of a lowering mechanism of the chip (1) chip carrier (2), a muffle (4), torch (5), a hopper (6), the mechanism of shaking (7) and cathetometer (8). One of the possible specifications of the device simplified, you can see in the picture. The numeral 8 in the diagram marked by the growing crystal itself.
The synthesis of precious stones is in the process of the melt during the melting of batch blanks for the future of the crystal. For the production of, for example, ruby prepare the charge of powder compound hydroxy aluminum (6 grams) and hydroxy chromium powder (0.2 g). The mixture need to pour into the furnace in small portions, in the combustion chamber it melts, and the resulting drop fall on the ceramic substrate, forming first a cone, then a cylinder, which will become your first home-grown single crystal.
Don't worry in relation to legislation in this area. The subject of the Russian Federation law "On precious metals and precious stones" are natural formations. Synthetic stones do not belong to them, therefore, the work your lab is legitimate.
Advice 2: How to grow precious stones
Natural gemstones are mined at times in the deep, dangerous for people areas, in their search, extraction and cutting out a lot of time and effort that makes a rather big and so the prices become even higher. At the same time, synthetic gemstones are exactly the same in their physical and chemical characteristics as the originals, but their production consumes much less effort.
There are many ways of growing gems, but the simplest and most accessible of them is the method of Auguste Vernale. More than a hundred years ago, he invented a way to grow for two or three hours, rubies, weighing 20-30 carats (4-6 grams).
A method of growing stones Vernale is the following: the burner is lowered to the nozzle via an external pipe supplied with hydrogen, and through the inner oxygen. For the production of rubies you will also need a powder of aluminum oxide. Your machine should start funnel where you pour in the oxide, which a few hours will become a jewel. Directly under the funnel is the burner connected to it by pipes, which go oxygen and hydrogen. Below should be the capacity, which will grow your ruby. The apparatus must of course be stable, and the part where the burner is isolated.
According to the method Vernale can be grown not only rubies, and Topaz of various colors. In recent years, the growing synthetic stones "in the kitchen" is gaining popularity, so if at first you find that to construct such a device too hard, remember that the scientist was able to collect a hundred years ago.
Another popular method of growing synthetic crystal gemstones Czochralski method, but for implementation you will need a lab. Its essence consists in the following: the melt of the substance from which you want to obtain precious stones, placed in a crucible of refractory metal is rhodium, iridium, molybdenum, tungsten. Then the crucible is heated in a high-frequency inductor. In the alloy, immersing a seed crystal from crystal material of the future, and already are grown synthetically stone of the required diameter. Using this method it is possible to obtain synthetic crystals of corundum or garnet.