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Slate Stone

Derived from the sedimentary rock shale, slatestone is a very fine grained metamorphic rock usually composed of mica, chlorite and quartz. The rock shale is applied to high heat and pressure, then the fine particles are melted together to form slate. It is a very durable and long lasting rock. Slatestone is available in different colors, size, thickness and surface at most cost effective prices. Also, this is a hard, dark-colored stone widely used for the construction of several buildings.
Stone Type


Commercial Specifications Technical Specifications

Surface Finish:
Natural, Sawn, Honed, Polished, Sandblasted, Leather finish.

Here it should be noted that some varieties yield appealing results in certain finishes only. Hence the choice of finish should be made cautiously.

Slab Dimensions:
Length Range 60cm to 150cm
Width Range 30cm to 60cm
Thickness Range 20mm to 50mm

Here it should be noted that slabs are available only in few colors.

Tiles Dimensions:
30x30, 40x40, 60x30, 60x60cm or any cut to size.
Thickness Range of 10mm to 30mm.

Machine cut, Chamfer, Pencil Edge, Half bullnose, Full bullnose, Rebated Bullnose.

We do undertake custom orders of any combination of color, finish, size, thickness, edge profile, etc.

Commercial Specifications Technical Specifications

Physically, commercial granites are Hard, Compact rocks with fine to coarse grains of metamorphic or igneous origin.

Hardness 6 to 7 on Moh's Scale
Density 2.6 to 2.8 Kg/cm3
Compressive Strength 140 to 210 N/mm2
Modulus of Rupture 15 to 25 N/mm2
Water Absorption 0.1-0.6%
Average Wear Less then 1%
Porosity Quite low
Weather Impact Resistant

Chemically, they are igneous/metamorphic rocks composed of quartz, feldspar & ferromagnesian minerals like kriolite, chlorite, garnet, etc. A typical granite will have following chemical composition:
Silica (SiO2) 70-75%
Al2O3 10-15%
CaO+MgO Less then 0.5%
FeO + Fe2O3 2-4%
Alkalies 4-6%
TiO2 Less then 0.5%
Loss On Ignition (LOI) Less then 0.5%

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