It would depend on which metamorphic rock. Slate is in demand as a high-end roofing product and paver stone. Marble is used in sculpture, countertops, and flooring. Anthracite is considered the premier coal type. Most rocks, in fact, have some sort of economic usefulness; some more than others.
Igneous, metamorphic, and sedimentary rocks can be changed by high temperatures and pressure, and the resultant rock is called metamorphic, because its form has been changed.
metamorphic rock
Metamorphic rocks can form from both igneous and sedimentary rocks
they are more softer than metamorphic rocks
Metamorphic rocks would have less porosity than sedimentary rocks.
BECAUSE THEY ARE! Problem?
No. Metamorphic rocks can also from front sedimentary rocks and from other metamorphic rocks.
metamorphic
Igneous, metamorphic, and sedimentary rocks can be changed by high temperatures and pressure, and the resultant rock is called metamorphic, because its form has been changed.
Metamorphic rocks
It is a type of Metamorphic rock
Sedimentary rocks have layers, not metamorphic rocks.
igneous, sedimentary, metamorphic
metamorphic rock
Metamorphic rocks can form from both igneous and sedimentary rocks
Metamorphic rocks can form from both igneous and sedimentary rocks
They are both rocks