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This lists of mines in India is subsidiary to the list of mines article, and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marbles and other quarries may be included in this list. In India, the underground mine to surface mine ratio is 20:80 [citation needed].
Star of India. The Star of India is a 563.35-carat (112.67 g) star sapphire, one of the largest such gems in the world. [1] [a] It is almost flawless and is unusual in that it has stars on both sides of the stone. The greyish-blue gem was mined in Sri Lanka [3] and is housed in the American Museum of Natural History in New York City.
The sapphire deposits of Kashmir are well known in the gem industry, although their peak production took place in a relatively short period at the end of the nineteenth and early twentieth centuries. [ 5 ] : 463–482 These deposits are located in the Paddar Valley of the Jammu region of Jammu and Kashmir in India. [ 36 ]
Sapphire is the birthstone for September and the gem of the 45th ... Star of India: Sri Lanka 563.4 carats (112.68 g) ... Southern Jewelry News Naso, Pat (February 5 ...
As of 2012, India is the largest producer of sheet mica, 2015 the fourth largest producer of iron ore, alumina, chromite, and bauxite in the world. A coal and iron ore project is in the fifth largest reserve in world. India's metal and mining industry was estimated to be $106.4 billion in 2010. [2] Mining in India has been prominent since ...
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India is the world's most populated country, having surpassed China in 2023. [26] [27] Although population growth in India has slowed, the country's population is expected to grow and hit a peak of 1.7 billion people by 2064. [27] India's replacement level fertility rate is 2, as of 2023. [28]
Residual deposits are mainly found in flood plains of rivers and streams. The metamorphic types of gems constitute 90% of the gem deposits in Sri Lanka. It has been estimated that nearly 25% of the total land area of Sri Lanka is potentially gem-bearing, making Sri Lanka one of the countries with the highest density of gem deposits compared to ...