What is it and where is it formed?
Gold is a valuable, yellow
metal. Gold is usually in
metamorphic rock but
sometimes is found in
sedimentary ones, too. It is
found in underground
veins of rock where the inside of the
Earth heats the water that flows through the rock.
How and where is it mined?
Gold is mined using
open pit, and
hard rock mining. Gold is found
in veins of rock and at the bottom of rivers and streams.
It can be found as small nuggets or flakes, but sometimes it
is in gold ore. You canít see the gold in gold ore.
The ore is crushed until it is like sand. There is a
long chemical process that separates the gold from the ore.
Gold is mined in: South Africa, The United States
[Nevada, California], Australia, Canada, and China.
What is it used for? Gold is used in jewelry, money,
computers, TVs, dentistry, and electronics.
If you look really closely at gold jewelry, it will show
what kind of gold is in it. If it says 24k [24 carats], it means that it is
pure gold. If it says 18k, 14k, or 10k, it means that some other metal has been
added to the gold. Other metals are added to gold so that it is harder.
Gold Rushes occurred when lots of people
found out that gold was found somewhere and everyone traveled to
that place to find some, too. Thousands of people might go
to an area where gold was found, hoping to get lucky and find