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What color is basalt?
The rock basalt can be greenish, blackish, or gray.
Is pumice a volcanic rock?
Yes, pumice is a volcanic rock that is formed from the solidification of frothy volcanic lava. It is known for its porous and lightweight nature, making it float on water.
What is a smooth glassy black igneous rock?
The rock you are describing is likely obsidian. Obsidian is a naturally occurring volcanic glass formed during rapid cooling of lava. It is usually black in color and has a smooth, glassy texture.
What is a rock consisting of angular fragments embedded in finer matrix formed by volcanic activity?
A rock consisting of angular fragments embedded in a finer matrix formed by volcanic activity is called a volcanic breccia. This type of rock is created when fragments of volcanic material are ejected during an explosion, then subsequently lithified into a solid rock.
Is basalt naturally occurring?
Yes, basalt is a naturally occurring volcanic rock formed from solidified lava flows. It is commonly found in areas with volcanic activity and is known for its dark gray to black color and fine-grained texture.
What color is mt Krakatoa?
Mount Krakatoa varies in color depending on the volcanic activity and the specific minerals present in the rock. It may appear gray, black, or reddish-brown due to the volcanic rock and ash covering its surface.
What mafic is like?
Mafic is a silicate mineral or rock that is rich in magnesium and iron, and is usually dark in color. It is formed from cooling volcanic lava.
Can you make fire with volcanic rock?
No. Volcanic rock is not flammable.
What color is basalt?
The rock basalt can be greenish, blackish, or gray.
Why would you find a volcanic rock on a volcanic island?
Volcanic islands are formed by volcanoes and are therefore composed of volcanic rock.
Volcanic rock a compound or nonmetallic?
Niether. Volcanic rock is a mixture.
Are river rocks porous?
No. It is a fine grained extrusive volcanic rock that is light in color. It is usually not porous.
What type of rock is porous volcanic rock?
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.
What is an intrusive black rock found in the ocean?
An intrusive black rock found in the ocean is likely basalt, which is a common volcanic rock formed from cooled lava flows. Basalt is known for its dark color and can be found in underwater volcanic eruptions and oceanic crust formations.
What is a rock that starts with a k?
Kimberlite is a volcanic rock. Kenyte is a volcanic rock found on Mount Kenya.
Is pumice a volcanic rock?
Yes, pumice is a volcanic rock that is formed from the solidification of frothy volcanic lava. It is known for its porous and lightweight nature, making it float on water.
How does volcanic rock form?
Volcanic rock forms by lava that has come from a volcano, cools and solidifies to form the rock.
