Gold has a density of 19.3g/cm3 iron pyrite commonly known as fools gold because its color has a density of 50.2g/cm3. suppose that you find a golden solid that has a mass of 25.04g and a volume of 4.99cm3 . have you found gold or iron pyrite? show your work?

Explanation:

if the density is more than 19.3 it has iron.

if it is less then it is not gold.

d=m/v

25.04/4.99=5.01g/cm3

then it is not gold, it is iron pyrite.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.