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Bianco Antico Granite From Brazil

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Description: Bianco Antico Granite is a coarse-grained white-grey pegmatite or granite of the Precambrian period with burgandy and taupe veining and patches. This stone internationally may be nominated as a granite but in the area of application of the European Standard this stone must be nominated as a pegmatite. During the polishing process a clear epoxy resin filler may be used to fill any micro fissures or tiny pitting however this does not affect the integrity of the stone, it merely provides an even smoother surface finish. Bianco Antico Granite is suitable for both interior and exterior use futhermore is frost resistant and with a constant polish.

Products: Suitable for construction projects both commercial and domestic, prefabricated countertops/worktops, vanities, tiles, backsplashes, paving, fireplaces and memorials.

Surface Finish: Bianco Antico Granite looks best with a gloss polished surface but is also available as honed, leather/satin, river-washed/antique, thermal/flamed, brushed and sandblast finish.

Sealing: Test with a small sample. It is most unlikely that a sealant can be used on Bianco Antico granite due to the tight grain formation, attempts at sealing it could actually create a residue film build-up.

Block Sizes: This is a quarry yielding selectable, grades of granite with blocks suitable for gangsaw size down to economical tile-sized blocks. For commercial projects it is important to ensure that blocks are selected from the same quarry face.

Rough blocks are usually exported by Break Bulk however intermodal containerisation is available at extra cost. Finished products are packed into sea-worthy wooden crates and loaded into containers.

Quarry Location: Bianco Antico Granite is quarried in Ceara, Brazil.

Synonyms: Aran White, Royal Silk.

Pegmatite: Almost any wholly crystalline, intrusive igneous rock that is at least in part very coarse grained, the major constituents of which include minerals typically found in ordinary igneous rocks and in which extreme textural variations, especially in grain size, are characteristic. Most pegmatites are composed of quartz, feldspar and mica; in essence a granite.

Granite: A coarse or medium-grained intrusive igneous rock that is rich in quartz and feldspar; it is the most common plutonic rock of the Earth's crust, forming by the cooling of magma (silicate melt) at depth. The principal constituent of granite is feldspar. Both plagioclase feldspar and alkali feldspar are usually abundant in it, and their relative abundance has provided the basis for granite classifications. In most granite, the ratio of the dominant to the subdominant feldspar is less than two. Rocks containing less than 20 percent quartz are almost never named granite, and rocks containing more than 20 percent (by volume) of dark, or ferromagnesian, minerals are also seldom called granite. The minor essential minerals of granite may include muscovite, biotite, amphibole, or pyroxene. Biotite may occur in granite of any type and is usually present, though sometimes in very small amounts.

Mineral Composition: Average Oligoclase: 30%, Microperthitic Microcline: 27%, Quartz: 25%, Biotite: 15%, Accessories: 3%

Technical Specifications

Compression Tensile Strength: 1514 kg/cm2

Tensile Strength After Freeze-Thaw Cycles: 1450 kg/cm2

Unitary Modulus Of Bending Tensile Strength: 93 kg/cm2

Water Imbibition Coefficient: 0.001800

Mass By Unit Of Volume: 2566 kg/m3

Hardness (Moh's Scale):

Note: These figures and details are given for guidance purposes only, no reliance should be taken as to their accuracy.


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