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Slate stone

         Slate stone: Slate stone is a natural stone that is basically a fine-grained rock formed by the composition of mud and stone sediment. Being a natural material, slate stone is found beneath the earth's surface in many countries throughout the world. Most of it comes from the quarries in India.

This natural slate stone can be used inside as well outside the home to make floor, roofs, walkways, in bathroom and as well as outside the home. Natural slate stone is found in wide range of colour including pink, chocolate, brown, red, green, purple, golden, silver, grey, white, black and also as multi-colored slate stone. This is one of the most beautiful and artistic creations by nature.

Uses of Natural Slate Stone: Slate stone in buildings for roofing, flooring, paving, and as countertops.

Slate stone as electric switch boards as this natural stone has good fireproof and electrical insulation properties. Because of this reason relays controls for big electric motors are also made up of natural slate stone. Also slate stone is used to make pool table and billiard table writing aids for classroom like writing slates and blackboards are also made up of slate stone.

Slates are dense and fine grained rock. The colour of slates are generally gray, red, brown and green ranging from dark to light. It is produced by the compression of clays, shale, and various other rocks developing a characteristic cleavage consisting sericite and quartz with biotite, chlorite, and hematite as principal accessories.

In other words slates are generally formed by low-grade regional metamorphism of pelithic sediments or fine-grained tuffs. It can be associated with other metamorphic sedimentary or volcanic rocks.

Slates are or argillaceous origin of metamorphic rocks and can also be defined as a layered stone. Fossils may be sometimes preserved in slate but are invariably distorted. Folds are often apparent in the field. Too fine-grained are tough to distinguished with the naked eye.

Uses of Slate

•Stepping stone in garden
•Combined with other materials gives quality and attractiveness
•Square blocks for a break band in section of granite paving
•Decorative clocks and thermameters
•Picture frame, mirrors, coasters, trivets, switch plates, candle holders.
•Engraved and painted in jewellery like earrings and pins.

Occurrences of Slate

Slates/Phyllite - There are vast deposits of Slate / Phyllite in Prakasam, Guntur and Nalgonda Districts. Some of the varieties are already been exported from the State to Australia, New Zealand and European Market.

Haryana is most famous for its high quality slates that occur mainly in districts of Rewari and Mahendragarh at Kund, Majra Manethi, Padla, Bujhar, Ganjar, Behali and Rampura Bas. All these areas are approachable by road and falls on Gurgaon-Narnaul State Highway. These slate deposits have an exposed strike length of 30 kilometres. The slates in all these localities vary widely in shades from black to grayish black, greenish grey and multicoloured. Slates are intercalated with silt stone and slaty phylltes. The Kund slates are one of the best quality slates available in the country. Grey and black colour slates are exposed in Kund and Behali whereas black to multicolour slates are found in other deposits. The slate is finely granular and crystalline and characterized by well developed rock cleavage.

Slate - Slate deposits in Rajasthan, estimated at 50 million tons, are spread over the districts of Alwar, Ajmer, Bharatpur, Bhilwara, Tonk, Sawai Madhopur, Pali, Udaipur, Rajsamand etc.

Slate Stone is found in abundance in the valley of Kashmir