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What is sometimes known as volcanic glass?
Obsidian is a glass of volcanic origin.
What type of rock is volcanic glass?
Siliceous volcanic glass is also known as obsidian.
Are the atoms in volcanic glass organized or disorganized?
The atoms in volcanic glass are highly disorganized.
Why is pumice special?
Pumice is considered special because it contains volcanic glass. It is a powdered or dust form of volcanic rock and the way pumice is formed is very unique.
Is volcanic glass a mineral?
Volcanic glass is not a mineral. It's composition is complex, and their is no crystalline structure.
What is true about volcanic glass?
Volcanic glass is the amorphous (uncrystallized) product of rapidly cooling magma.
What is the common name for obsidian rock?
The common name for obsidian rock is volcanic glass.
Is volcanic glass full of air spaces?
Not necessarily. Scoria and pumice are forms of volcanic glass that contain air spaces, while obsidian, another volcanic glass, contains minimal air spaces if any.
Is volcanic glass a Granite?
No. Granite cools from magma deep underground. Volcanic glass cools quickly at or near the surface.
What is the name of the dense volcanic glass that is typically black in color?
The name of the dense volcanic glass that is typically black in color is obsidian.
Is pumice and obsidian exaples of minerals?
Pumice is not a mineral; it is a type of volcanic rock with a frothy texture. Obsidian, on the other hand, is a naturally occurring volcanic glass and is considered a mineraloid rather than a true mineral because it lacks a crystalline structure.
Is volcanic glass an intrusive or extrusive igneous rock?
Volcanic glass is an extrusive igneous rock. It forms when molten lava cools quickly on the Earth's surface, preventing the formation of crystals.
