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Quicklime costs $120 per ton. Lime is used in large quantities as a building and engineering material. The rocks and minerals from which these materials are derived, typically limestone or chalk, are composed primarily of calcium carbonate. They may be cut, crushed or pulverized and chemically altered.
In 2012 Myers sold his single biggest consignment of 15,000 tons at $50 per ton (with the government getting $2 per ton in royalties) to a start-up company called US Aragonite. But within a couple of years oil prices fell, other plastics manufacturing processes became more cost-effective, and US Aragonite went bust.