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2. Prices of chemical elements - Wikipedia

   en.wikipedia.org/wiki/Prices_of_chemical_elements

   Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume.

3. LME Zinc - Wikipedia

   en.wikipedia.org/wiki/LME_Zinc

   The contract prices are quoted in US dollars per ton. LME prices have minimum tick sizes of $0.50 per ton (or $12.50 for one contract) for open outcry trading in the LME Ring and electronic trading on LME-select, while minimum tick sizes are reduced for inter-office telephone trading to $0.01 per ton (or $0.50 for one contract).

4. File:Gold Spot Price per Gram from Jan 1971 to Jan 2012.svg

   en.wikipedia.org/wiki/File:Gold_Spot_Price_per...

   English: This chart shows the nominal price of gold along with the price in 1971 and 2011 dollars (adjusted based on the consumer price index). The historical gold price was obtained from www.igolder.com; CPI was obtained from www.rateinflation.com. The data is in section Chart Data.

5. Colored gold - Wikipedia

   en.wikipedia.org/wiki/Colored_gold

   12K red gold: 50% gold and 50% copper; Up to 15% zinc can be added to copper-rich alloys to change their color to reddish yellow or dark yellow. [2] 14K red gold, often found in the Middle East, contains 41.67% copper. The highest karat version of rose gold, also known as crown gold, is 22 karat. Amongst the alloys made of gold, silver, and ...

6. Zinc - Wikipedia

   en.wikipedia.org/wiki/Zinc

   Soils contaminated with zinc from mining, refining, or fertilizing with zinc-bearing sludge can contain several grams of zinc per kilogram of dry soil. Levels of zinc in excess of 500 ppm in soil interfere with the ability of plants to absorb other essential metals, such as iron and manganese. Zinc levels of 2000 ppm to 180,000 ppm (18%) have ...

7. This Is the Best Time to Take Zinc - AOL

   www.aol.com/lifestyle/best-time-zinc-140000236.html

   Here's the best time to take your zinc supplement, how to take it, and proper dosages, safety, and side effects. ... an adult male needs 11 milligrams per day, ... USA TODAY. Homeowners have ...