the extraction and sale of blood diamonds, also known as 'conflict diamonds', is a better-known phenomenon which occurs under virtually identical conditions. even petroleum can be a conflict resource; isis used oil revenue to finance its military and terrorist activities. there have been international efforts to reduce trade in conflict .
molybdenum is mined as a principal ore and is also recovered as a byproduct of copper and tungsten mining. the world's production of molybdenum was 250,000 tonnes in 2011, the largest producers being china 94,000 t , the united states 64,000 t , chile 38,000 t , peru 18,000 t and mexico 12,000 t .
manganese ii sulfate usually refers to the inorganic compound with the formula mnso 4 ·h 2 o. this pale pink deliquescent solid is a commercially significant manganese ii salt. approximately 260,000 tonnes of manganese ii sulfate were produced worldwide in 2005. it is the precursor to manganese metal and many other chemical compounds.
red mercury is purportedly a substance of uncertain composition used in the creation of nuclear weapons, as well as a variety of unrelated weapons systems.because of the great secrecy surrounding the development and manufacture of nuclear weapons, there is no proof that red mercury exists.
zinc is the 24th most abundant element in earth's crust and has five stable isotopes. the most common zinc ore is sphalerite zinc blende , a zinc sulfide mineral. the largest workable lodes are in australia, asia, and the united states. zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity electrowinning .
palladium is a chemical element with the symbol pd and atomic number 46. it is a rare and lustrous silvery-white metal discovered in 1803 by the english chemist william hyde wollaston.he named it after the asteroid pallas, which was itself named after the epithet of the greek goddess athena, acquired by her when she slew pallas.palladium, platinum, rhodium, ruthenium, iridium and osmium form a .
modern uses of arsenical bronze. arsenical bronze has seen little use in the modern period. it appears that the closest equivalent goes by the name of arsenical copper, defined as copper with under 0.5 wt% as, below the accepted percentage in archaeological artefacts. the presence of 0.5 wt% arsenic in copper lowers the electrical conductivity to 34% of that of pure copper, and even as little as 0.05 wt% decreases it by 15%.
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when used as a pigment, it is called titanium white, pigment white 6 pw6 , or ci 77891. generally, it is sourced from ilmenite, rutile and anatase. it has a wide range of applications, including paint, sunscreen and food coloring. when used as a food coloring, it has e number e171.
lockyer was the first to propose that the line was due to a new element, which he named. the formal discovery of the element was made in 1895 by two swedish chemists, per teodor cleve and nils abraham langlet, who found helium emanating from the uranium ore, cleveite, which is now not regarded as a separate mineral species but as a variety of .
honduras has the world's highest murder rate and high levels of sexual violence. honduras spans about 112,492 km 2 43,433 sq mi and has a population exceeding 9 million. its northern portions are part of the western caribbean zone, as reflected in the area's demographics and culture.