Sandstone Paving Natural
Sandstone Paving Honed
Sandstone Paving More Finish
Sandstone Tile Natural
Sandstone Tile Honed
Sandstone Tiles More Finish
Sandstone Slabs Natural
Sandstone Slabs Honed
Sandstone Slabs More Finish
Sandstone Cobbles/kerbs
Sandstone Pebbles/gravels
Sandstone Circles/sphere/rock
Sandstone Wall Pannel/mosaic
Sandstone Walling Stone
Sandstone Walling More
About Sandstone
Sandstone is a sedimentary rock group which is mostly made up of tiny grains of quartz. Most sandstone is formed in oceans, lakes and rivers where tiny bits of rock and dirt settle to the bottom. Year after year, these layers of sand get buried under tons of more sand and dirt until it is turned into solid rock. Sandstone can be found in many colors.
Physical Properties of Sandstone Physically, they are very Hard, Compact, Fine grained, equi-granular homogeneous rocks of sedimentary nature (Sandstone)
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 |
Chemical Properties of Sandstone
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% |
They are highly resistant to acids, alkalies and thermal impact. Insolubility in acids and alkalies is about 97%.
Teakwood and Rainbow sandstones differ from above physical properties
Hardness |
6 to 6.5 on Moh's Scale |
Density |
2.07 to 2.11 Kg/cm3 |
Compressive Strength |
41 to 63 N/mm2 |
Modulus of Rupture |
7-11 N/mm2 |
Water Absorption |
8.0 - 11 % |
Porosity |
Comparatively Porous |
Weather Impact |
Resistant |
Ocurrances of Sandstone
India |
Bari Railway station in Bharatpur district |
Scotland |
Watlen, Caithness |
Algeria |
Jurjura and Shellata |