What's the world's most precious metal? Take the quiz.
Ever want to know just how valuable gold is? What about platinum? Take our valuable metals quiz to see which metals is considered the most valuable.start quiz
Question 1 of 20
What metal has the best electrical and thermal conductivity?
... Silver, in its purest form, has the best electrical and thermal conductivity of all the metals.
Question 2 of 20
Who built coffins out of gold?
... Ancient Egyptians used gold in many cultural items, including burying nobility in gold coffins.
Question 3 of 20
Who discovered palladium?
... William Hyde Wollaston discovered palladium in 1803.
Question 4 of 20
Where does most rhodium come from?
... About 60 percent of the world's rhodium supply came from South Africa in 2009.
Question 5 of 20
Which metal has the third-highest melting point?
... Rhenium can withstand blistering conditions since it has the third-highest melting point among metals.
Question 6 of 20
Where did almost half of the world's palladium come from in 2009?
... Almost half of the world's palladium came from Russia in 2009, followed by South Africa, the United States and Canada.
Question 7 of 20
What's the unit of weight used to measure precious metals?
... The unit of measurement known as a troy ounce is commonly used for precious metals. One troy ounce is equivalent to 31.1 grams.
Question 8 of 20
Who discovered osmium and iridium?
... Smithson Tennant discovered both osmium and iridium in 1803.
Question 9 of 20
Which of the following countries was NOT one of the largest miners of gold in 2009?
... The largest miners of gold in 2009 included South Africa, the United States, Australia and China.
Question 10 of 20
When was rhenium discovered?
... Rhenium, a silvery metal and by-product of molybdenum, was discovered in 1925.
Question 11 of 20
Silver can NOT be used to:
... Beyond conventional uses, silver may surprise you in the fact that it can help prevent the spread of bacteria, stop mold from growing and control body odor.
Question 12 of 20
Platinum is NOT found in which country?
... Platinum is found in a variety of countries, especially in South Africa, Russia and Canada.
Question 13 of 20
What event triggered the first, large-scale usage of indium?
... Indium was used on a widespread basis for the first time during World War II, as a coating for bearings in aircraft engines.
Question 14 of 20
Which of the following is used to create white gold?
... Jewelers use palladium to create white gold alloys.
Question 15 of 20
Who discovered ruthenium?
... Karl Karlovich Klaus discovered ruthenium in 1844.
Question 16 of 20
An asteroid believed to have triggered a mass extinction on Earth displaced huge amounts of what rare metal?
... Iridium is an extremely rare metal, yet large amounts of it have been found along the K-T boundary -- referring to Earth's giant extinction event.
Question 17 of 20
What's one of the most widely used metals?
... Though perhaps not as beautiful as the precious metals, iron is one of the most widely used metals in the entire world.
Question 18 of 20
Which country is NOT a large producer of indium?
... China, South Korea and Japan are some of the largest producers of indium in the world.
Question 19 of 20
At what temperature will ruthenium eventually begin to degrade?
... Ruthenium is able to withstand many external factors, to a point. At around 1,472 degrees Fahrenheit (800 degrees Celsius), the metal will eventually begin to break down.
Question 20 of 20
What are the two densest elements?
... Osmium and iridium are the two densest metals known to man.
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