metamorphic rock.
Gneiss usually consists of visible crystals of aligned mineral assemblages.
Igneous rock contains minerals arranged in crystals and forms when molten rock cools and solidifies. Examples include granite and basalt.
The type of rock that forms when crystals combine and create visible bands is called metamorphic rock, specifically a foliated metamorphic rock. An example of this is gneiss, which features alternating layers of different mineral compositions. The banding occurs due to the alignment of mineral grains under pressure and temperature conditions.
Gneiss is a type of metamorphic rock that often exhibits large intergrown crystals in thin bands. It forms from the transformation of pre-existing rocks under high temperature and pressure conditions, resulting in a banded appearance with distinct layers of different mineral compositions and grain sizes.
sedimintary
Gneiss usually consists of visible crystals of aligned mineral assemblages.
Igneous rock.
Igneous rock contains minerals arranged in crystals and forms when molten rock cools and solidifies. Examples include granite and basalt.
The type of rock that forms when crystals combine and create visible bands is called metamorphic rock, specifically a foliated metamorphic rock. An example of this is gneiss, which features alternating layers of different mineral compositions. The banding occurs due to the alignment of mineral grains under pressure and temperature conditions.
Igneous.
Gneiss is a type of metamorphic rock that often exhibits large intergrown crystals in thin bands. It forms from the transformation of pre-existing rocks under high temperature and pressure conditions, resulting in a banded appearance with distinct layers of different mineral compositions and grain sizes.
sedimintary
it is a metamorfc
The type of rock that contains lava or magma is an igneous rock.
The appearance and type of mineral crystal appearing in a rock is dependent on the type of rock and the method by which it is created.
Porphry is a type of igneous rock that typically contains large, well-defined crystals (phenocrysts) embedded in a fine-grained matrix. It forms when magma cools slowly beneath the Earth's surface, allowing time for these larger crystals to grow.
an igneouus rock