<P> According to modern cosmological theory, lithium--in both stable isotopes (lithium - 6 and lithium - 7)--was one of the three elements synthesized in the Big Bang . Though the amount of lithium generated in Big Bang nucleosynthesis is dependent upon the number of photons per baryon, for accepted values the lithium abundance can be calculated, and there is a "cosmological lithium discrepancy" in the universe: older stars seem to have less lithium than they should, and some younger stars have much more . The lack of lithium in older stars is apparently caused by the "mixing" of lithium into the interior of stars, where it is destroyed, while lithium is produced in younger stars . Though it transmutes into two atoms of helium due to collision with a proton at temperatures above 2.4 million degrees Celsius (most stars easily attain this temperature in their interiors), lithium is more abundant than current computations would predict in later - generation stars . </P> <P> Lithium is also found in brown dwarf substellar objects and certain anomalous orange stars . Because lithium is present in cooler, less - massive brown dwarfs, but is destroyed in hotter red dwarf stars, its presence in the stars' spectra can be used in the "lithium test" to differentiate the two, as both are smaller than the Sun . Certain orange stars can also contain a high concentration of lithium . Those orange stars found to have a higher than usual concentration of lithium (such as Centaurus X-4) orbit massive objects--neutron stars or black holes--whose gravity evidently pulls heavier lithium to the surface of a hydrogen - helium star, causing more lithium to be observed . </P> <Table> Lithium mine production (2016), reserves and resources in tonnes according to USGS <Tr> <Th> Country </Th> <Th> Production </Th> <Th> Reserves </Th> <Th> Resources </Th> </Tr> <Tr> <Td> Argentina </Td> <Td> 5,700 </Td> <Td> 2,000,000 </Td> <Td> 9,000,000 </Td> </Tr> <Tr> <Td> Australia </Td> <Td> 14,300 </Td> <Td> 1,600,000 </Td> <Td> 2,000,000 + </Td> </Tr> <Tr> <Td> Austria </Td> <Td> - </Td> <Td> - </Td> <Td> 100,000 + </Td> </Tr> <Tr> <Td> Bolivia </Td> <Td> - </Td> <Td> - </Td> <Td> 9,000,000 </Td> </Tr> <Tr> <Td> Brazil </Td> <Td> 200 </Td> <Td> 48,000 </Td> <Td> 200,000 </Td> </Tr> <Tr> <Td> Canada (2010) </Td> <Td> 480 </Td> <Td> 180,000 </Td> <Td> 2,000,000 </Td> </Tr> <Tr> <Td> Chile </Td> <Td> 12,000 </Td> <Td> 7,500,000 </Td> <Td> 7,500,000 + </Td> </Tr> <Tr> <Td> DR Congo </Td> <Td> - </Td> <Td> - </Td> <Td> 1,000,000 </Td> </Tr> <Tr> <Td> Mexico </Td> <Td> - </Td> <Td> - </Td> <Td> 200,000 </Td> </Tr> <Tr> <Td> People's Republic of China </Td> <Td> 2,000 </Td> <Td> 3,200,000 </Td> <Td> 7,000,000 </Td> </Tr> <Tr> <Td> Portugal </Td> <Td> 200 </Td> <Td> 60,000 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> Russia </Td> <Td> - </Td> <Td> - </Td> <Td> 1,000,000 </Td> </Tr> <Tr> <Td> Serbia </Td> <Td> - </Td> <Td> - </Td> <Td> 1,000,000 </Td> </Tr> <Tr> <Td> United States </Td> <Td> </Td> <Td> 38,000 </Td> <Td> 6,900,000 </Td> </Tr> <Tr> <Td> Zimbabwe </Td> <Td> 900 </Td> <Td> 23,000 </Td> <Td> 100,000 + </Td> </Tr> <Tr> <Td> World total </Td> <Td> 32,500 </Td> <Td> 14,000,000 </Td> <Td> 46,900,000 </Td> </Tr> </Table> <Tr> <Th> Country </Th> <Th> Production </Th> <Th> Reserves </Th> <Th> Resources </Th> </Tr>

Where can lithium be found in the world
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