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Why Use Clay Bottles, Advantages and Characteristics of Clay and the formation of Clay. Advantage of clay bottle: Nature friendly, easily recyclable. Reduces pollution. Not cancerous. Though its hot outside, still you can enjoy cool water anywhere, be it Non air conditioned office or a hot boiling car, since it easily fits in the cup holder. Absolutely handy and portable. No chance of dangerous toxic chemical, while consumption of water. Hygenic. Can be used during rituals. Ethnic look. Gives a unique flavour to the water that you drink.



FORMATION OF CLAY

Clay minerals typically form over long periods of time as a result of the gradual chemical weathering of rocks, usually silicate-bearing, by low concentration of carbonic acid and other diluted solvents. These solvents, usually acids, migrate through the weathering rocks after leaching through upper weathered layers.

Some clay minerals are formed through hydro thermal activities. Clay deposits are typically associated with very low energy depositional environments such as large lakes and marine basins.



CHARACTERISTICS OF CLAY

Clay is a fine grained natural rock or soil material that combines one or more clay minerals with traces of metal oxides and organic matters. Clays are plastic due to their water content and become hard, brittle and non-plastic upon drying or firing. Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure. Depending on the soils content in which it is found, clays can appear in various colors from white to dull grey or brown to deep orange red. Clays are distinguished from other fine grained soils by differences in size and mineralogy. Silts which are fine grained soils that do not include clay minerals tend to have large sized particles than clays.

HISTORICAL & MODERN USES OF CLAY

Clays exhibit plasticity when mixed with water in certain proportions. When dry, clay becomes firm and when fired in kiln, permanent physical and chemical changes occur. These changes convert the clay into a ceramic material. Because of these properties, clay is used for making pottery.

Different types of clay, when used with different minerals and firing conditions are used to produce earthenware, stoneware and porcelain.

Pre-historic humans discovered the use of clay around 14000 B.C. Clay being relatively impermeable to water, is also used where natural seals are needed, such as in the course of dams or as a barrier in landfills against toxic seepage (lining the landfill), preferably in condition with geo-textile.

Recent studies have investigated clays absorption capacities in various applications, such as removal of heavy metals from waste water and air purification.

Usage of clay goes back to pre-historic times.

Harappan Civilisation was an era 9000 years old and it was one of the three civilizations of the old world, and one of the three most wide spread. It flourished in the basins of the Indus River, one of the major rivers of Asia. One of the civilizations is noted for, the usage of clay as in pottery and baked brick houses.

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