Home
Categories
Search
Home
Categories
General
Earth
Ruby and sapphire are gem forms of which mineral?
Earth
Ruby and sapphire are gem forms of which mineral?
Corundum
Chalcedony
Chrysoprase
Chrysoberyl
More Questions from Earth
What type of gem is the Star of Africa or the Cullinar II?
Reveal Answer
What is best described as gage pressure plus atmospheric pressure?
Reveal Answer
What is the current era in the geologic time scale?
Reveal Answer
Which of these is not a group of modern desert?
Reveal Answer
What color was the dust that swept the Great Plains?
Reveal Answer
What was the Great Plains of the U.S. called in the 1930's because of erosion?
Reveal Answer
Ruby and sapphire are gem forms of which mineral?
Reveal Answer
Which rock would test positive to an acid test?
Reveal Answer