Earth

What mineral makes both sapphires and rubies when cut and polished?

More Questions from Earth
What is the solid form of water?
Reveal Answer
What is another name for layers of rock?
Reveal Answer
What rock was used for navigation by the ancient Chinese people?
Reveal Answer
What is the wearing away of parts of the Earth by water or wind called?
Reveal Answer
What happens when hot and cold water meet?
Reveal Answer
If the beach loses 3 feet of sand each year, how many feet will it lose in 15 years?
Reveal Answer
What is the test that can help determine the hardness of a rock called?
Reveal Answer
There are over one quadrillion of what animal on Earth?
Reveal Answer