Limestone Flaggy
Name and Composition - Limestone is a calcareous rock, essentially composed of CaO. Presence of fine argillaceous parting make it flaggy. It generally contains varying amount of silica, magnesia and iron. Presence of magnesia above 5 % makes it dolomitic and when it reaches 21.7%, it becomes dolomite.
Physical Properties - It is a fine to medium grained, non-crystalline to crystalline, medium hard, generally grey to grayish white, greenish white and varied coloured rock which generally occurs in thinly bedded form. The beds are generally separated by thin shale parting.
Mode of Occurrence - Occurs as low dipping and almost horizontally diposed bedded deposits.
Uses - It is vastly used as flooring and roofing stone, wall claddings, flagstone, paving stone in building, roads, as aslets, girders, milestone etc.
Mineral based Industries – Cutting and polishing units.
Industrial Prospects – Cutting and polishing units.
Physical Properties
Hardness
Compressive strength
Water absorption
Density
Porosity
Compressive strength
Water absorption
Density
Porosity
3 to 4
1800 to 2100 Kg/cm2
0.31 %
2.5 to 2.65 g/cm3
Quite low
1800 to 2100 Kg/cm2
0.31 %
2.5 to 2.65 g/cm3
Quite low
Chemical Properties
Lime (CaO)
Silica (SiO2)
Alumina (Al2O3)
Other Oxides like Na, Mg Loss On Ignition (LOI)
Silica (SiO2)
Alumina (Al2O3)
Other Oxides like Na, Mg Loss On Ignition (LOI)
38-42%
20-25%
2-4%
1.5 to 2.5%
30-32%
20-25%
2-4%
1.5 to 2.5%
30-32%
Indian Minerals
Metallic Minerals
Cadmium Ore
Copper Ore
Lead Ore
Zinc Ore
Iron Ore
Manganese Ore
Tungsten Ore
Bauxite Ore
Limestone and Dolomite
Limestone
Dolomite
Fertilizer Minerals
Gypsum
Pyrite
Rock Phosphate
Saltpeter
Fuel Minerals
Lignite
Glass and Ceramic Minerals
Ball Clay
China Clay
Feldspar
Fire Clay
Kyanite
Quartz
Quartzite
Silica Sand
Precious and Semiprecious Minerals
Aquamarine
Emerald
Industrial Minerals
Asbestos
Barytes
Bentonite
Calcite
Fluorite
Fuller's Earth
Garnet
Magnesite
Graphite
Mica
Mill Stone
Ochre
Pyrophylite
Siliceous Earth
Silimanite
Soapstone
Vermiculite
Wollastonite
Dimensional and Building Stone
Granite
Limestone - Flaggy
Marble
Rhyolite
Sandstone
Serpentinite
Shale/Schist/Phyllite
Slate