Coober Pedy: Fill in the Blanks

Where is Coober Pedy located?

What gem is mined in Coober Pedy?

What is the name of underground homes?

Who discovered the first opals?

In what year were opals first discovered?

What does Kupa Piti mean?

How many ethnic groups live in Coober Pedy?

What percent of the world's opals come from Coober Pedy?

Who buys the opals directly? Hint: Write the country's name.

What kind of town is Coober Pedy?