physics
posted by Kathie .
If a mineral has a gravity of 5.5, how much more matter is there in 1 cm3 of this mineral than in 1 cm3 of water?

I bet the answer is 4.5 grams per cc. Why?

Do you subtract the specific gravity of water which is 1 from the mineral gravity of 5.5 to find the difference in matter? Or, is the answer the same because 1 cm3 of water is the same as 1 cm3 of a mineral?