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obsidian

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15y ago

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Describe the texture of obsidian?

Obsidian is a hard, dark volcanic rock that is formed by the rapid solidification of lava. Its texture is glassy and shiny black.


Is pumice metalic?

No. Pumice is a glassy vesicular volcanic rock.


Is pumice a metal?

No. Pumice is a glassy vesicular volcanic rock.


How do Igneous rock with glassy textures?

An igneous rock with a glassy texture cooled from its' liquid state very quickly, an example of this would be obsidian, a volcanic glass.


What type of volcanic rock is extremely vesicular and glassy?

Obsidian is a type of volcanic rock that is extremely vesicular and glassy in appearance. It forms when lava cools quickly with minimal crystal growth, resulting in a smooth texture and shiny appearance.


Is pumice inorganic?

Yes. Pumice is inorganic. It is a glassy volcanic rock made mostly of silicates.


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 an example of volcanic glass?

Obsidian is a common example of volcanic glass. It is formed when molten lava cools rapidly, creating a glassy black or dark-colored rock. Obsidian is often used in jewelry and as a cutting tool due to its sharp edges.


What Kind of rock is this glassy surface of lots of small holes in the rocks?

The glassy surface with lots of small holes in the rocks is typically associated with volcanic rock called pumice. Pumice forms when volcanic lava cools rapidly and traps gas bubbles, creating a lightweight, porous material. Its glassy texture and numerous holes give it a distinctive appearance, making it useful in various applications, including as an abrasive in beauty products and in landscaping.


What is dark volcanic rock?

Obsidian


What is a polished mineral with a glassy luster called?

a rock


What is the name given to the volcanic glass that forms due to very rapid cooling of magma?

Yes obsidian is glassy because it cooled very fast.