White Andromeda Granite
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Synonyms: Andromeda, Andromeda White, Bianco Andromeda, White Lanka
Location: White Andromeda granite is quarried near NE Colombo, Sri Lanka.
Description: White Andromeda granite is a white, wavy banded granulite of the Precambrian period with some little garnets. 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 granulite.
The veining and colour varies and a small sample of White Andromeda granite may not be representative of the whole slab therefore swatch samples must be approved for large projects to ensure that the blocks are all extracted from the same quarry face for matching purposes. Ideal for both interior and exterior use, White Andromeda granite is frost free and polish constant.
Technical and Physical Characteristics:
Compression tensile strength: 2080 kg/cm2
Tensile strength after freeze-thaw cycles: 1990 kg/cm2
Unitary modulus of bending tensile strength: 132 kg/cm2
Heat expansion coefficient: 0,0065 mm/m°C
Water imbibition coefficient: 0,004000
Mass by unit of volume: 2620 kg/m3
Granulite: Granulites are metamorphic rocks that have experienced high temperatures of metamorphism. They typically have a granular (granoblastic) texture that is, a texture comprised of similarly sized and shaped grains and hence the name granulite.