This has a kind of glowing translucent quality which looks amazing when placed next to both natural and artificial light sources, which will penetrate shallowly into the surface and reflect a kind of luminous radiance unlike other types of rock. Other types of marble rock are used in large blocks to create large building features, such as floors, columns, and walls.
Skip to content. Key Facts About Marble Marble is a metamorphic stone, which means it is formed by subjecting limestone to extreme pressure or heat. Marble consists of calcium carbonate calcite and is sparkling white in its purest form. You can also found colour variations of marble, such as black or grey, which is caused by mineral impurities Many mistakenly refer to any stone material that can be polished as marble, but this is technically incorrect.
The texture of marble is granular and you can see calcite crystals within the material. Toy marbles are not actually made from stone marble! What are Metamorphic Rocks?
What is Marble Used For? It consists chiefly of calcite or dolomite, or a combination of these carbonate minerals. Most marble of commercial value was formed in the Paleozoic Era or earlier in Precambrian Time. South American nations also have large marble deposits. In the United States, Georgia produces the most marble. Marble is formed from limestone by heat and pressure in the earth's crust.
These forces cause the limestone to change in texture and makeup. This process is called recrystallization. Fossilized materials in the limestone, along with its original carbonate minerals, recrystallize and form large, coarse grains of calcite. Impurities present in the limestone during recrystallization affect the mineral composition of the marble that forms. At relatively low temperatures, silica impurities in the carbonate minerals form masses of chert or crystals of quartz.
At higher temperatures, the silica reacts with the carbonates to produce diopside and forsterite. At extremely high temperatures, rarer calcium minerals, such as larnite, monticellite, and rankinite, form in the marble. If water is present, serpentine, talc, and certain other hydrous minerals may be produced. The presence of iron, alumina, and silica may result in the formation of hematite and magnetite. The minerals that result from impurities give marble a wide variety of colors.
The purest calcite marble is white. Marble containing hematite has a reddish color. Marble that has limonite is yellow, and marble with serpentine is green. One of the top reasons homeowners select marble for their countertops and floors is the elegant beauty it imparts to the home.
It can spruce up the dullest looking bathroom, kitchen, or walkway with its wide variety of colored marble patterns. With the right care, marble has good longevity and can be used in different parts of the home to add sophisticated and classy looks. There are advantages to having marble countertops in the kitchen, especially for home bakers and personal chefs.
The surface of marble stays cool, making it an ideal roll-out surface for pastries and doughs. Many people are not aware that marble is also heat resistant. It will not catch fire or burn, and you may place semi-hot pans on it for relatively short periods of time without damage to the surface. When marble is installed and properly sealed and maintained, it has the potential to last for a lifetime. Marble is a natural stone, so it is less resistant to scratching, staining, and cracking than other countertop surfaces.
It is also softer than surfaces like granite, this makes it easier to produce a wide variety of edge profiles to make distinguished looking cuts and arches. These types of designs come at a higher cost, but in comparison to granite are still much lower.
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