It also can be found in Baltimore, New Zealand and also in Saxony.
As result, mafic rocks tend to be dark in color and felsic rocks tend to be lighter in color.
The rocks must have formed when the gases located in the magma expand and form bubbles as the lava moves to the surface.
Pegmatite It is among the plutonic types of igneous rocks which are very large in size.
Argillite does have a glamorous side that slate can't match.
It is considered to be a cumulate of various crystals that have become fractioned due to heat and melting.