I was accidentally discovered during World War II while building anti-tank barriers.
And congratulations to the winner.
Its name was inspired by the national park where it was found.
And congratulations to our winner.
But consumers generally won't pay the premium for the American gemstone.
My apple-green color will tempt you.
Just don't call me "sapphire."
Thank you, thank you, my radiologist accepts your compliments.
My internal formations define me.
It takes its name from a German mountain range but it's Africa that is the key source.
But it often arrives in a beautiful royal purple.
You likely know my name – the tough part is spelling it correctly.