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The platinum-group metals [a] (PGMs) are six noble, precious metallic elements clustered together in the periodic table. These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). [1] The six platinum-group metals are ruthenium, rhodium, palladium, osmium, iridium, and platinum.
Alloying this impure platinum residue called "plyoxen" [citation needed] with gold was the only solution at the time to obtain a pliable compound, but nowadays, very pure platinum is available and extremely long wires can be drawn from pure platinum, very easily, due to its crystalline structure, which is similar to that of many soft metals.
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.
During the past year, the spot price for platinum has increased about 16%, compared with a 42% gain for gold, FactSet's data shows. Platinum's current spot price is $1,004 an ounce, according to ...
The company has launched the sale of one-ounce platinum bars on its website, with a price tag of $1,089.99. ... Costco Precious Metals—to inform one another when stock is refreshed for gold ...
The metal was found in small grains mixed with gold in river deposits, which the workers sintered with gold to form small trinkets such as rings. The first published report of platinum was written by Antonio de Ulloa , a Spanish mathematician, astronomer, and naval officer who observed "platina" (little silver) in the gold mines of Ecuador ...
Costco continues to chip away at the gold mine that is the precious metals market.The wholesaler is adding Swiss-made platinum bars to its selection. Costco on Wednesday announced the 1-ounce ...
Gold nugget A selection of precious metal elements; gold, silver, platinum, palladium, copper, ... Metal price (US$/kg) Name Symbol 10 Apr 2009 [21] 22 Jul 2009 [22]