Volcanic rocks are extrusive igneous rocks.
Igneous rock.
It will be in a volcanic or sediment rock.
Not necessarily. It canbe as heavy as ordinary rock, or much ligher. The lightest rock on earth, pumice, is a volcanic rock. It is light enough to float in water.
because it is a volcanic rock
No. Volcanic rock (or igneous rock) is formed when lava cools. A metamorphic rock is formed when a rock changes because of tremendous heat and pressure underneath the earth to become a new type of rock.
No. Obsidian is just one of many types of volcanic rock.
Igneous rock.
plutonic and volcanic
Igneous Rock
Igneuse rock types because of its volcanic origin
No. Volcanic rock is not flammable.
Volcanic islands are formed by volcanoes and are therefore composed of volcanic rock.
Niether. Volcanic rock is a mixture.
Volcanic rocks can vary in hardness depending on their mineral composition. On the Mohs scale of mineral hardness, most volcanic rocks fall between 5 to 7, with basalt being around 6 and rhyolite around 7.
Yes, stratification can occur in volcanic rocks. Volcanic rocks can display layering, or stratification, as a result of different types of volcanic events or processes that occurred during their formation, such as changes in magma composition or environmental conditions. These layers can provide valuable information about the history of the volcanic activity that produced the rock.
Kimberlite is a volcanic rock. Kenyte is a volcanic rock found on Mount Kenya.
Porous volcanic rock is commonly classified as either pumice or scoria. Pumice is often lighter in color and has a very porous texture due to the presence of numerous gas bubbles, while scoria is darker and similarly porous but is typically more dense than pumice. Both are formed from volcanic eruptions and can float on water.