Diamonds Emeralds Rubies Sapphires
Preparation of single crystals by zone heating method.
Among many other methods belonging to the same family as the Czochralski method, We should be interested in one more zone melting method. This method is used for two different purposes: growing single crystals …
The method of extracting crystals from a liquid, developed by Czochralski and modified by many other physicists, belongs to the group of crystallization methods by cooling a melt with the same composition as the grown crystal..
A method similar to that of Czochralski is the Kyropoluos method developed …
Crystallization device.
However, when we want to get really beautiful crystals at home, and it is made of materials that are difficult to dissolve in water, we can use another way, although also included among the methods of crystallization from solutions. For this, however, we need to build a special "device", …
The theory and principle of crystallization we already know from class VI. Also the course of the experiment. Here are excerpts from the text from a physics textbook:
“Pour the salt and sugar solution from the glasses into separate saucers, put them on an asbestos plate and heat with a small flame for as long, until …
The phenomenon of crystallization it is easy to observe on the window glass in winter. When it is warm in the apartment, and outside the window is frosty, really winter weather, steam from a kettle or a pot of soup condenses on a much cooler glass. When the frost is behind …
Crystallographic systems.
W 1830 the year of the German mineralogist Johann F. Ch. Hessel, creator of the classification of crystals based on mathematical principles, proved by mathematical methods, that they can only exist in the building of crystals 32 cases of symmetry, or 32 crystallographic classes, which can be grouped into 7 …
Crystallization, that is, the formation of crystals may occur in nature in various ways: 1) from the gaseous state, 2) from alloys, 3) from solutions.
Crystallization from the gaseous state can occur either as a result of sublimation, or reactions between gases or vapors …