It belongs to the Metamorphic rock type.
Yes, the gneiss rocks are usually crystalline. The gneiss rocks are foliated or banded metamorphic rocks that have the same composition as the granite.
Gneiss rocks are products of metamorphism while granite rocks are derived from igneous activity.
A gneiss is a metamorphic rock. Metamorphic rocks are created by the alteration of rocks by heat and pressure. Therefore, a gneiss may be created from an igneous rock in which case it would be called an orthogneiss.
Gneiss rocks typically form from the metamorphism of either sedimentary rocks like shale or igneous rocks like granite. Through intense heat and pressure deep within the Earth's crust, the original minerals in these rocks recrystallize and reorganize to create the distinctive banding and foliation that characterizes gneiss.
Granite and gneiss are both types of rocks that are formed from the cooling and solidification of molten magma or rock. Gneiss is actually a metamorphic rock that is derived from granite through the process of metamorphism. Both rocks exhibit visible mineral grains and are commonly used in construction and landscaping due to their durability.
gneiss
Gneiss
y'al can make gneiss or granodiorite
They are both metamorphic rocks.
marble
Metamorphic rocks are classified into two main groups: foliated and non-foliated. Foliated rocks have a layered or banded appearance due to the alignment of mineral grains during metamorphism, while non-foliated rocks lack this layered structure and typically consist of interlocking crystals.
Gneiss contains the minerals mica, quartz, feldspar, amphibole, garnet, and pyroxene.