Agra Red


Product Description

Physically, they are very Hard, Compact, Fine grained, equi-granular homogeneous rocks of sedimentary nature (Sandstone) & metamorphic nature (Quartzite).
Color: Minor color tonal variations exist but within the tolerance limit.
Hardness: 6.5 to 7 on Moh’s Scale
Density: 2.3 to 2.4 Kg/cm3
Compressive Strength: 90 to 140 N/mm2
Modulus of Rupture: 16-40 N/mm2
Water Absorption: 1.0 – 1.2 %
Porosity: Low to very low
Weather Impact: Resistant
Chemically, they are very resistant Mono-Mineralic rocks, principally composed of silica. The other minor constituents vary from origin to origin
SiO2: 95-97%
Iron (Fe2O3): 0.5%-1.5%
Alumina (Al2O3): 1 to 1.5%
Soda (Na2O) & Potash (Kro): Less then 1%
Lime (CaO): Less then 0.5%
Magnesia (MgO): Less then 0.5%
Loss On Ignition (LOI): Less then 0.5%


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