Decorating With Stone -part 3-
· Marble: Marble is a crystalline rock, mainly composed of variable sized grains of calcite and dolomite, in addition to quartz, mica, graphite, garnet, pyrite, etc.. This makes the marble may have many and varied colors, which makes it very valuable and highly sought after as a decoration.
The marbles were formed in almost all geological eras and in most of the world, which explains its wide variety of the many factors affecting their emergence and existence. Is exploited in large open-air quarries.
Of course, as we all know, marble is the material used in sculpture, in the construction of monuments and statues, ornamental pieces, etc.. It is, in general, these uses most of us are familiar with the vision of marble.
But with only stick out a history book can we account for the many uses in construction that has been given to marble, from ancient Greece to today. And these applications include both external and internal applications, which gives us an idea of how versatile they can be this stone, beyond the artistic.
In general, one could say that their characteristics are the same as the limestone, being in fact a kind of “race” of limestone itself.
It is also one of the stones are more easily in almost all terminations and as many colors and shades. Many of his varieties have names, either by color or by their place of origin. Among them we can name the Old Blue (a very rare variety, blue-veined white zig-zag), the royal blue (dark blue marble with veins that are weakening as they go, to blend with the background), the brocade (whose color depends on the site: Bologna gray, bluish gray Montin, yellow, that of Siena); cipolin (green marble veins containing white powder, abundant in Corsica, Savoy and Piedmont) Carrara (perhaps the most famous of all, is a pure white variety, caused by contact metamorphism and white limestone, is much used in sculpture and exploited for centuries in Carrara) Florence (marble yellow, sometimes greenish, enhanced by a dark pattern); Paros (statuary marble translucent yellowish) and Siena (marble formed by yellow blotches, surrounded by wine-colored veins).
As we see, many of the varieties come from Italy, which is considered in the popular imagination as the world producer of marble, but actually comes from across the world.
There are only two things to keep in mind and are negative when it comes to marble. One is that certain types of marble (for example those containing greenish serpentine) must be installed in areas where they are in contact with water following very precise instructions, because if they can break. And the second is that, like polished granite, marble can be slippery until it forms a patina, which we must be very careful if we use it for flooring.
Source: www.enplenitud.com/nota.asp?articuloid=6559
images sources: www.mii.org/Minerals/Minpics1/Marble.jpg; www.scrapbookscrapbook.com/images/marble2setb.jpg
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