What is the fabric element in metamorphic rocks?

Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form". read more

Metamorphic rock is the result of the transformation of a pre-existing rock type, the protolith, in a process called metamorphism, which means "change in form". The protolith is subjected to heat (greater than 150 degrees Celsius) and extreme pressure causing profound physical and/or chemical change. read more

Metamorphic rocks. Scientifica/Corbis Documentary/Getty Images The two basic fabric categories in metamorphic rocks are foliated and massive. Foliation means layers; more specifically it means that minerals with long or flat grains are lined up in the same direction. read more