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2. Hierarchy of precious substances - Wikipedia

   en.wikipedia.org/wiki/Hierarchy_of_precious...

   In popular culture, sets of precious substances may form hierarchies which express conventional perceived relative value or merit. Precious metals appear prominently in such hierarchies , but as they grow, gems and semi-precious materials may be introduced as part of the system.

3. Precious metal - Wikipedia

   en.wikipedia.org/wiki/Precious_metal

   Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded. [1] The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value. Historically, precious metals have commanded ...

4. Noble metal - Wikipedia

   en.wikipedia.org/wiki/Noble_metal

   A galvanic series is a hierarchy of metals (or other electrically conductive materials, including composites and semimetals) that runs from noble to active, and allows one to predict how materials will interact in the environment used to generate the series.

5. Category:Precious metals - Wikipedia

   en.wikipedia.org/wiki/Category:Precious_metals

   Precious metals as investment (4 C, 7 P) A. Precious metal alloys (1 C, 26 P) G. Gold (13 C, 96 P) I. ... Hierarchy of precious substances; I. Iridium; Ironstone's ...

6. Why investors are drawn to precious metals - AOL

   www.aol.com/why-investors-drawn-precious-metals...

   The precious metals market has seen unprecedented growth this year. Gold prices have shattered records, reaching an all-time high of over $2,700 per ounce in October.

7. Platinum group - Wikipedia

   en.wikipedia.org/wiki/Platinum_group

   The platinum-group metals (PGMs), also known as the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs), 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 ...

8. 5 Precious Metals That Hold Steady Value in the Market

   www.aol.com/best-precious-metals-etfs-consider...

   Precious metals are a distinct asset class that many investors use to hedge other investments they may hold, such as stocks and bonds. This is because precious metals are often considered "safe...

9. Metals of antiquity - Wikipedia

   en.wikipedia.org/wiki/Metals_of_antiquity

   The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury. Zinc, arsenic, and antimony were also known during antiquity, but they were not recognised as distinct metals until later.