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Much of this foreign crab is reportedly caught and imported illegally and has led to a steady decline in the price of crab from $3.55 per pound in 2003 to $3.21 in 2004, $2.74 in 2005 and $2.30 in 2007 for Aleutian golden king crab, and $5.15 per pound in 2003 to $4.70 in 2004 to $4.52 in 2005 and $4.24 in 2007 for Bristol Bay red king crab. [7]
[1]: 137 More than 160 copper oxhide ingots, 62 bun ingots, and some of the tin oxhide ingots have incised marks typically on their rough sides. [ 1 ] : 146 Some of these marks—resembling fish, oars, and boats—relate to the sea, and they were probably incised after casting, when the ingot was received or exported.
This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.
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Purity can be roughly assessed by the nugget color, the richer and deeper the orange-yellow the higher the gold content. Nuggets are also referred to by their fineness, for example "865 fine" means the nugget is 865 parts per thousand in gold by mass. The common impurities are silver and copper.
Currently, pennies are 97.5% zinc and 2.5% copper, and at current prices of those metals, ... Currently, auctions are asking between $2 and $3 per pound for quantities of 10 to 25 pounds of coins ...
That should eventually send prices soaring to $15,000 per ton, he predicted. Coppers prices are already at record highs, with benchmark prices in London at about $10,000 per ton, more than ...
Ingot molds are tapered to prevent the formation of cracks due to uneven cooling. A crack or void formation occurs as the liquid to solid transition has an associated volume change for a constant mass of material. The formation of these ingot defects may render the cast ingot useless and may need to be re-melted, recycled, or discarded.