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Getting to know Granite

Updated:2008-10-22 14:02:21

Granite Counter Tops


The slabs of granite are used to make counter tops. With the natural beauty and elegance of granite that cannot be surpassed, more depth and character is added when installing granite counter tops.

This is mostly used in kitchen, bars, and counters of the shops. With the varied colors and sophisticated textures it is easy to find the perfect granite to complement cabinets in kitchen. Enduring granite before using can be matched virtually with the decor. The vanity counter tops give an elegant and impressive look to the kitchen and are not even very expensive to afford. Yet another good reason to use granite vanity counter tops is that it is resistant to stain, scratch, and heat.

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Granite Composition


Granite, the hard natural igneous rock having visible crystalline texture is formed essentially of quartz and orthoclase or microcline. The principal constituents of granite are feldspar, quartz and Biotite. However the percentage composition of each varies and accordingly impart different color and texture to the final product. The percentage composition of feldspar varies between 65-90% , of quartz can extend from 10 to 60% and that of biotite lies between 10 to 15%.

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Granite Physical Properties


In terms of its physical properties granite is a unique material. These properties lending uniqueness to granite are:

Porosity/permeability
Granite has almost negligible porosity ranging between 0.2 to 4%.

Thermal Stability
Granite is highly stable thermally, therefore shows no changes with the change in temperature. Granite is impervious to weathering from temperature and even from the air borne chemicals. It is the high resistance to chemical erosion that makes granite useful for making tanks to store highly caustic material.

Co-efficient of expansion
The co-efficient of expansion for granite varies from 4.7x10-6 – 9.0x10-6(inch x inch).

Variegation
Granite shows consistency in color and texture.

Hardness
It is the hardest building stone and hardness of granite that lends it excellent wear.

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Granite Cleaning


Though granite is a hard and non porous stone that is unaffected by most chemicals it still requires high degrees of care while cleaning. While cleaning, the use of harsh chemicals should be avoided. Here are few recommendations to keep granite surface clean:
Regularly dust the surface.
Use few drops of neutral cleaner, stone soap, or a mild liquid dish washing detergent or warm water.
Too much cleaner or soap may leave a film and cause streaks.
Use a clean rag.
the products containing acids should be avoided. The acid in high concentration etches the surface.
After using the soap solution, the surface should be rinsed properly.
Do not mix bleach and ammonia; this combination creates a toxic and lethal gas.
Do not use powders or creams that may create scratches.
In the kitchen extremely hot pans should not be kept over granite slabs since it quickly absorbs heat and distributes it out.

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Source:http://www.azgraniteconnection.com

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