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Zeolite exhibited in the Estonian Museum of Natural History. Zeolite is a group of several microporous, crystalline aluminosilicate minerals commonly used as commercial adsorbents and catalysts. [1] They mainly consist of silicon, aluminium, oxygen, and have the general formula M n+ 1/n (AlO 2) − (SiO 2) x ･y H 2 O where M n+ 1/n is either ...
[a] Many kinds of materials exhibit some molecular sieves, but zeolites dominate the field. Zeolites are almost always aluminosilicates, or variants where some or all of the Si or Al centers are replaced by similarly charged elements. [2]
This is a descriptive list of Stone Age art, the period of prehistory characterised by the widespread use of stone tools. This article contains, by sheer volume of the artwork discovered, a very incomplete list of the works of the painters, sculptors, and other artists who created what is now called prehistoric art.
Visual arts – class of art forms, including painting, sculpture, photography, printmaking and others, that focus on the creation of works which are primarily visual in nature. Visual Arts that produce three-dimensional objects, such as sculpture and architecture , are known as plastic arts .
The Art of Painting by Jan Vermeer. The term composition means "putting together". It can be thought of as the organization of the elements of art according to the principles of art. Composition can apply to any work of art, from music through writing and into photography, that is arranged using conscious thought.
Art Nouveau posters and graphic arts flourished and became an important vehicle of the style, thanks to the new technologies of color lithography and color printing, which allowed the creation of and distribution of the style to a vast audience in Europe, the United States and beyond. Art was no longer confined to art galleries, but could be ...
Pollucite is a zeolite mineral with the formula (Cs,Na) 2 Al 2 Si 4 O 12 ·2H 2 O with iron, calcium, rubidium and potassium as common substituting elements. It is important as a significant ore of caesium and sometimes rubidium. It forms a solid solution series with analcime.