What precious stone's name was derived from the Greek word meaning "unconquerable"?

More Questions:

Which UK politician was given the nickname Tarzan?

Who wrote the book "Northanger Abbey"?

What river provided the water for which Handel wrote "Water Music"?

Which city is home to the South-of-Market district?

The Makah Indians lived on which coast?

What country is named for the founder of the "Friars Preachers" religious order?

The Yellow River is what country's second longest?

What year did actor Anthony Hopkins become a naturalized citizen of the US?

What three letter name did the band formerly known as "Slut Bank and Twisted Kites" finally settle on?

The family on the TV show "Married...with Children" was named in honor of what wrestler?

What season 13 competitor in the TV show "Big Brother" told Rachel that she rooted for her in season 12?

In 1553, Lady Jane Grey was Queen of England for how many days?

Who wrote the 1950s play "The Rose Tattoo"?

"The Pastoral Symphony" is another name for which of Beethoven's symphonies?

In which Canadian province would you find Christmas Island?