Verde Guatemala Marble (Serpentinite)
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Description: Verde Guatemala Marble is a medium to dark green Serpentinite Breccia with dark green veins. This stone internationally may be nominated as a marble but in the area of application of the European Standard this stone must be nominated as Serpentinite. The veining and colour varies considerably and a small sample of Verde Guatemala Marble 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. 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. Verde Guatemala Marble is ideal for both interior and exterior use however polish is only constant inside.
The name Verde Guatemala derives from its similarity to the original dark green chlorite schist from Sierra de las Minas, Zacapa, Guatemala and now called Verde Quatelmala. This stone is traded and produced under many different names.
Products: Suitable for construction projects both commercial and domestic, prefabricated countertops/worktops, vanities, tiles, backsplashes, paving, fireplaces and memorials.
Surface Finish: Verde Guatemala Marble 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 possible that a sealant can be used on Verde Guatemala however excessive attempts at sealing it could actually create a residue film build-up.
Block Sizes: This is a quarry yielding selectable, grades of marble 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: Verde Guatemala Marble is quarried near Rakhab Dev, Udaipur, Rajasthan, Hindustan, India. There are many quarries, large and small, with several varieties and countless trade names. Some quarry have a selectable lighter green groundmass.
Synonyms: Green Guatemala, Green Snake, Gruen Guatemala, Guatemala Gruen, Indian Green, Indian Green Marble, KG 17, Rajasthan Green, Rajasthan Sea Green, Rayastan Sea Green, Verde Guatemala Indiano, Verde Guatemale, Verde Imperiale, Verde Imperiale Indiano, Verde Radjastan, Verde Rajastan, Verde Udaipur, Verdi Guatemala, Vert Guatemala
Breccia A sedimentary rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble". A breccia may have a variety of different origins, as indicated by the named types including sedimentary breccia, tectonic breccia, igneous breccia, impact breccia, and hydrothermal breccia.
Marble: Is a metamorphosed limestone, composed of very pure calcium carbonate, CaCO3. The softness of marble and its relative isotropy and homogeneity make marble very desirable for sculpture and building stone. Although marble comes from limestone, the temperatures and pressures necessary to form marble usually destroy any fossils that may have been present in the limestone.
Marble derives its name from the Greek marmaros, shining stone. [source: OED2]. This stem is also the basis for the English word marmoreal meaning "marble-like". In folklore, marble is associated with the astrological sign of Gemini. Pure white marble is an emblem of purity. It is also an emblem of immortality, and an ensurer of success in education.
Serpentine: Any of a group of hydrous magnesium-rich silicate minerals. The composition of these common rock-forming minerals approximates Mg3Si2O5(OH)4. Serpentinite is a rock composed of one or more serpentine group minerals. Minerals in this group are formed by serpentinization, a hydration and metamorphic transformation of ultramafic rock from the Earth's mantle.
Mineral Composition: Average by %
Compression Tensile Strength: kg/cm2
Tensile Strength After Freeze-Thaw Cycles: kg/cm2
Unitary Modulus Of Bending Tensile Strength: kg/cm2
Heat Expansion Coefficient: mm/m°C
Water Absorption: By Weight 0.19 - 0.48%
Impact Strength: cm
Frictional Wear: mm
Mass By Unit Of Volume: 2660 - 2700kg/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.