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Siliceous volcanic glass is also known as obsidian.
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What is the obsidian rock type?
Obsidian is an extrusive felsic igneous rock.
What is the common name for obsidian rock?
The common name for obsidian rock is volcanic glass.
What type of volcanic rock is closest to the crater?
The type of volcanic rock closest to the crater is typically the youngest and freshest in composition. This rock is referred to as volcanic glass or obsidian, which forms when lava cools rapidly with minimal crystal growth. It is commonly found near the crater due to its recent eruption and proximity to the volcanic activity.
What type of rock had no visible crystals as result of rapid cooling?
Obsidian is an example of a rapidly cooled rock, also known as volcanic glass.
What type of rock is siliceous volcanic glass?
Siliceous volcanic glass is a type of rock known as obsidian. It forms when molten lava cools quickly, preventing the formation of distinct mineral crystals and resulting in a smooth, glassy texture. Obsidian is typically dark in color and is commonly used in tools and jewelry due to its sharp edges and attractive appearance.
What is a mixture of volcanic glass and organic matter?
A rock.
What is a extrusive rock that is actually glass?
Obsidian is an extrusive rock that is a naturally occurring volcanic glass. It occurs when lava extrudes from a quickly cooling volcano, causing little crystal growth.
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.
Is pumice a element or compound?
Pumice is neither an element nor a compound. It is a type of volcanic rock that is made up of various minerals and volcanic glass.
Is obsidian extrusive rock?
No. Obsidian is volcanic glass. Glass is amorphous and thus noncrystalline.
Will a obsidian rock float on water?
No, obsidian is a type of volcanic glass that is denser than water, so it will sink when placed in water.
What type of rock do you have?
volcanic rock from cape verde
