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Secondly the price of gypsum has dropped as a result of increased supply see figure 8 the average cost of gypsum in the us between 1900 and 1970 was us8709t 12 as higher amounts of synthetic gypsum became available the price decreased to an average of us5654t from 1971 to 1980 and us1542t from 1981 to 2011
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Read MoreThe total price of construction cost the duke 261000 yet the canal helped cut prices of coal within manchester by half when it was completed the canal allowed one horse to pull 30 long tons of coal per trip more than ten times more cargo than was previously possible by cart
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Mar 02 2011 the decision to sell comes nearly three years after severstal paid twice as much 22 billion to buy the three facilities including 810 million for sparrows point
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Oct 22 2011 the trust also recently completed a complex deal that resulted in the donation of a 2450acre 100yearold gypsum mine just south of death valley
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