Banka is an administrative district in the state of Bihar in India. The district headquarters are located at Banka. The district occupies an area of 3018 km² and has a population of 1,608,778 (as of 2001). Districts are a form of local government in several countries. ... Jump to: navigation, search Bihar ( बिहार in Devanagri) is a state of the Indian union situated in the eastern part of the country. ... Jump to: navigation, search Banka is a small village in the province of Basse-Navarre, in the South part of France. ... This article explains the meaning of area as a physical quantity. ... Square kilometre (US spelling: Square kilometer), symbol km², is an SI unit of surface area. ... Jump to: navigation, search 2001: A Space Odyssey. ...
Ptolemy refers to the diamond river in India; and the fact that diamonds were known to, and highly prized by, the ancient inhabitants of the country is proved by the rich adornment of the oldest temples of religion with this and other precious stones.
That the occurrence of diamonds in India is almost entirely confined to the eastern side of the Deccan plateau is to be gathered from the finds of the present day and from the reports of earlier times.
In southern India at the base of this series of beds are beds of sandstone and conglomerates that are known as the Banaganapalli group and here constitute the diamantiferous strata.
India has now lost all its former fame as a country rich in diamonds; the most productive mines have long ago been exhausted, and only the poorer deposits still remain.
The chief blow, however, to the diamond mining industry of India was the discovery of the precious stone in Brazil, a country from which diamonds have been sent to the market since 1728.
Since in India no new and rich deposits have been discovered to take the place of the old, worked out mines, as has been the case in Brazil, the time cannot be far distant when India must be excluded from the list of diamond-producing countries.
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