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While the difficulty of obtaining macroscopic samples of synthetic elements in part explains their high value, there has been interest in converting base metals to gold (Chrysopoeia) since ancient times, but only deeper understanding of nuclear physics has allowed the actual production of a tiny amount of gold from other elements for research ...
To be saleable on most international markets, platinum ingots must be assayed and hallmarked in a manner similar to the way gold and silver are. [4] [5] The price of platinum changes along with its supply and demand; during periods of sustained economic stability and growth, the price of platinum tends to be as much as twice the price of gold ...
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...
In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $1 million AUD, making it the largest minted coin in the world with a gold value of around $50 million AUD. [2] China has produced coins in very limited quantities (less than 20 pieces minted) that exceed 8 kilograms (260 ozt) of gold.
The price of gold rises to reflect the more available dollars (or euros or yen…), offsetting the factors that keep prices moving higher. ... A $10,000 investment in this S&P 500 fund 15 years ...
However, Pt can solubilise in road dust, enter water sources, the ground, and increase dose rates in animals through bioaccumulation. [33] These impacts from platinum groups were previously not considered, however [34] over time the accumulation of platinum group metals in the environment may actually pose more of a risk than previously thought ...