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Khondalite at Rushikonda, Visakhapatnam, India Khondalite is a foliated metamorphic rock.In India, it is also called Bezwada Gneiss and Kailasa Gneiss. [1] It was named after the Khond tribe [2] [1] of Odisha and Andhra Pradesh because well-formed examples of the rock were found in the inhabited hills of these regions of eastern India.
Until 2006, South Africa was the world's largest gold producer. In 2007, increasing production from other countries and declining production from South Africa meant that China became the largest producer, although no country has approached the scale of South Africa's period of peak production during the late 1960s and early 1970s.
Kolar Gold Fields (K.G.F.) is a mining region in K.G.F. taluk (township), Kolar district, Karnataka, India. It is headquartered in Robertsonpet , where employees of Bharat Gold Mines Limited (BGML) and BEML Limited (formerly Bharat Earth Movers Limited) and their families live. K.G.F. is about 30 kilometres (19 mi) from Kolar , 100 kilometres ...
Gold occurs principally as a native metal, i.e., gold itself.Sometimes it is alloyed to a greater or lesser extent with silver, which is called electrum.Native gold can occur as sizeable nuggets, as fine grains or flakes in alluvial deposits, or as grains or microscopic particles (known as colour) embedded in rock minerals.
These ammonite fossils serve as a non-anthropomorphic symbol of Vishnu.. A shaligram, or shaligrama shila (Devanagari: शालिग्राम शिला; IAST: Śāligrāma-śilā), is a fossilized stone or ammonite collected from the riverbed or banks of the Kali Gandaki, a tributary of the Gandaki River in Nepal. [1]
In gold mining, KCN forms the water-soluble salt potassium gold cyanide (or gold potassium cyanide) and potassium hydroxide from gold metal in the presence of oxygen (usually from the surrounding air) and water: 4 Au + 8 KCN + O 2 + 2 H 2 O → 4 K[Au(CN) 2] + 4 KOH. A similar process uses NaCN to produce sodium gold cyanide (NaAu(CN 2)).
Gold is extracted at number 1 and number 2 mines, the later known as the Qi2 Gold Mine Qi-2, Qiqiu No. 2, or Qi-II. [3] Mining activity started in May 2003 [3] after Canadian mining company Dynasty Gold Corp entered into a joint venture with Chinese state mining company Xinjiang Non-Ferrous Metals Group. [6] [4] [7] Dynasty held 70% ownership. [7]
Gold prices (US$ per troy ounce), in nominal US$ and inflation adjusted US$ from 1914 onward. Price of gold 1915–2022 Gold price history in 1960–2014 Gold price per gram between Jan 1971 and Jan 2012. The graph shows nominal price in US dollars, the price in 1971 and 2011 US dollars.