precious metals
Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best known precious metals are the coinage metals, which are gold and silver.

Is gold and copper a type of metal?

Example metals include gold, sodium, copper, iron, and many other elements. Metals are usually malleable, ductile, and shiny.

What type of metal is platinum?

Platinum is a silvery metallic chemical element, a member of the six transition elements in Group VIII of the periodic table known collectively as the platinum metals (ruthenium, rhodium, palladium, osmium, iridium, and platinum). Platinum has the symbol Pt, its atomic number is 78, and its atomic weight is 195.09.

What metal most expensive?

Most Valuable Metals in Jewelry: The Top List of Valuable Metals

1. Rhodium: Top Most Valuable Metal. Rhodium is the most valuable metal and exists within the platinum group of metals.
2. Palladium: 2nd Most Valuable Metal.
3. Gold: 3rd Most Valuable Metal.

What kind of metals are in gold and silver?

Colored Gold Gold Color Alloys White 10% to 20% nickel, plus copper, tin, and Green Silver, sometimes cadmium and zinc Red or Pink Copper Yellow Silver and copper

What makes gold different from silver and platinum?

This group includes the following elements: ruthenium, rhodium, palladium, osmium, iridium, gold, silver, and platinum. In addition to noble metal properties, gold, silver, and platinum posses the following characteristics: These metals occur worldwide, but not in large enough quantities to render them less valuable.

Which is more rare platinum or gold jewelry?

Platinum jewelry is very rare — 30% more rare than gold — which means it is usually more expensive than gold. When used in jewelry, platinum is often combined with a variety of other similar metals, known as the platinum group metals: palladium, ruthenium, iridium, rhodium and osmium.

Which is more durable platinum or 14K gold?

Though platinum is a stronger and more durable metal than gold, platinum is a softer metal, meaning that it will scratch easier than 14k gold. When platinum jewelry is scratched, the platinum is moved from one part of the piece of jewelry to another, creating something called a patina finish.