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  2. Rhodium - Wikipedia

    en.wikipedia.org/wiki/Rhodium

    Rhodium is a hard, silvery, durable metal that has a high reflectance. Rhodium metal does not normally form an oxide, even when heated. [25] Oxygen is absorbed from the atmosphere only at the melting point of rhodium, but is released on solidification. [26] Rhodium has both a higher melting point and lower density than platinum.

  3. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

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  4. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    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. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.

  5. Group 11 element - Wikipedia

    en.wikipedia.org/wiki/Group_11_element

    Group 11, by modern IUPAC numbering, [1] is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), gold (Au), and roentgenium (Rg), although no chemical experiments have yet been carried out to confirm that roentgenium behaves like the heavier homologue to gold.

  6. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    Gold nugget A selection of precious metal elements; gold, silver, platinum, palladium, copper, ruthenium, rhodium, rhenium, osmium, iridium and mercury. They are labeled and arranged by their location on the periodic table. Precious metals are rare, naturally occurring metallic chemical elements of high economic value.

  7. The 10 Most Expensive Fountain Pens in the World - AOL

    www.aol.com/10-most-expensive-fountain-pens...

    Priced at: $1.5 million. Similarly, the Boheme Royal features an 18-karat white gold barrel adorned with over 1,400 diamonds. The pen comes in two versions: one with pure white diamonds and the ...

  8. Noble metal - Wikipedia

    en.wikipedia.org/wiki/Noble_metal

    While lists of noble metals can differ, they tend to cluster around gold and the six platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum. In addition to this term's function as a compound noun, there are circumstances where noble is used as an adjective for the noun metal.

  9. Tennis Bracelets and Earrings—Oh My! Hop on This Huge ... - AOL

    www.aol.com/lifestyle/tennis-bracelets-earrings...

    In addition to its smattering of Diamonique simulated diamonds, the bracelet comes with the option of either rhodium-plated sterling silver or 14K yellow gold-plated sterling silver to fit every ...

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