Wednesday, October 21, 2009

Granite Varieties:

Granite, a holo-crystalline quartz-bearing plutonic rock, has - 10 to 50% of quartz as its module, the alkali feldspar/totality feldspar in the comparative amount among 65 to 90%, and the modal attention of other mineral deposits is less than 10%. Wounding of granite follows the processing. The wounding of granite has been made easier by the use of steel abrasives. Use of such tools enhance wounding of granite, save time and lend smoother edges. The granite is cut into slim slabs by multi-blade gangsaws, and using a variety of types of granite cutting blades available in the marketplace.

Granite is available in 3 main varieties, which are as follows:

Biotite-granite include quartz, plagioclase, biotite & K-feldspar.

Hornblende-granite also called Syenitic granite; contain hornblende as well as mica.

Tourmaline-granite Composed mostly of Tourmaline, this type of granite exhibit a large range of colors and very rarely exists as white or colorless range.

Of these 3 varieties, Biotite-granite is the majority common and forms a very fitting building stone for durability and beautification. These rocks, due to their huge nature and all the same grain, are very adapted for colossal and architectural work as well as for huge masonries. Their broad variety in look and colors – red, grey, black, white, pink etc. render the stones highly decorative and effectual for a variety of decorative uses.

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