The ore bauxite is the chief commercial source of which element?

More Questions:

Canonized in 1933, what famous nun is the patron saint of the French pilgrimage town of Lourdes?

What brand of cognac calls itself "Le Cognac de Napolean"?

What literary work inspired Franz Ferdinand's "Love and Destroy" song?

What historical event is central to the novel “A Tale of Two Cities”?

What woodwind instrument is sometimes called a "licorice stick"?

What is the capital of Vanuatu?

Who christened Hawaii "the Sandwich Islands" in 1778?

Mount Sunflower is what US state's highest point?

Which country is home to the spring festival called "Holi"?

What invisible "color" can bees see on flower petals?

What "-itis" is an inflammation of the liver?

Which drug can be extracted from the bark of the cinchona tree?

How many episodes of "The Bob Newhart Show" were made?

What year was actor Stephen Fry born?

How many times did Mary Queen of Scots get married?