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Also question is, how common is gold on Earth?

Gold is a valuable but relatively rare element, making up as little as 0.0011 parts per million -- or grams per metric ton -- of the Earth's crust, and as little as 0.00001 grams per metric ton of seawater.

Beside above, is gold a rare metal? A precious metal is a very rare, naturally occurring metallic chemical element of high economic value. 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.

Also know, is gold that rare?

Gold owes its status as a precious metal to its rarity: all the gold mined throughout history would fit into a square box with sides of around 20m in length. Gold is rare throughout the Universe because it's a relatively hefty atom, consisting of 79 protons and 118 neutrons.

Is Gold always valuable?

Gold should be an important part of a diversified investment portfolio because its price increases in response to events that cause the value of paper investments, such as stocks and bonds, to decline. Although the price of gold can be volatile in the short term, it has always maintained its value over the long term.