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Diamond mine in the Golconda region 1725 CE from the collection of Pieter van der Aa—a Dutch publisher known for preparing maps and atlases.. The period of peak production of the Golconda diamonds (in the present-day states Andhra Pradesh and Telangana, India) was under the Qutb Shahi dynasty (16th century – 17th century CE), and the region was also known as the "Golconda Sultanate".
The Golconda diamondiferous region is located in the Southern Indian peninsular shield, [2] which was formed during the process of proterozoic and Insular India. [3] The region is spread over 50,000 km 2 (19,000 sq mi), within the sediments of the Krishna-Pennar river basin and Deccan Traps, [2] and contains 120 out of the 150 kimberlite pipes in India. [4]
Nevada Gold Mines was formed on July 1, 2019, as a joint venture between Barrick Gold (61.5% ownership) and Newmont (38.5% ownership) through the combination of their significant gold mining assets across northern Nevada. [2] The assets in Nevada Gold Mines include 10 underground mines and 12 surface mines as well as related facilities. [3]
In 2020 mining overall contributed $9.5 billion to the state's economy, $8.4 billion from gold and silver mining (all silver produced in Nevada is as a by-product from gold mining). Gold production from Nevada was higher than any other U.S. state, 4,632,690 troy ounces (144,090 kg) in 2020 (a decrease of 4.8% on 2019), accounting for 76% of ...
The mining operation currently consists of two underground mines, Getchell and Turquoise Ridge, operated as the Turquoise Ridge Joint Venture. Barrick Gold is operator and 75% owner with Newmont Mining owning the remaining 25%. [4] The mining methods currently used are cut-and-fill and long hole stoping.
Golconda is a census-designated place in southeastern Humboldt County, Nevada, United States. [2] As of the 2020 census it has a population of 182. [ 4 ] It is located along Interstate 80 on the Humboldt River in the northwestern part of the state.
Kollur Mine was a series of gravel-clay pits on the south bank of the Krishna River in the state of Andhra Pradesh, India. [1] It is thought to have produced many large diamonds, known as Golconda diamonds, several of which are or have been a part of crown jewels. The mine was established in the 16th century and operated until the 19th century.
This is a partial list of current and defunct mines in Ashland. Name County Years Material Coordinates Adventure mine: Ontonagon: 1850–1920: copper