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Obsidian
Reese Lebsack
Wiki User
∙ 9y agoThe types of rock that forms when this occurs is called an igneous rock. However, there are two types of igneous rocks that can form depending on how fast the cooling occurs. These are extrusive and intrusive rocks. While extrusive rocks form from fast cooling, intrusive rocks form from slow cooling.
Wiki User
∙ 15y agoObsidian is a glassy rock formed from quick cooling lava.
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∙ 8y agoWhen lava cools extremely fast it forms volcanic glass, better known as obsidian. This often occurs when lava hits water.
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∙ 14y agoVolcanic glass.
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∙ 13y agoObsidian
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∙ 12y agoobsidian :)
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∙ 12y agoObsidian
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∙ 9y agoObsidian
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What is smooth glassy lava called?
Obsidian.
What rock is formed when lava cools down?
igneous rock is formed when lava cools down
What types of crystal are formed if maltan rock cools quickly?
When a magma cools/solidifies, crystals are formed. The quicker the magma cools, the tinier the crystals. A granite for example, which is formed through slow cooling in the Earth's crust, consists out of big crystals. Contrary, magma erupting at the surface (which is then called lava) cools rapidly and consists out of tiny crystals. In extreme cases, the lava cools so rapidly that the resulting rock appears glassy. Hope this helps!
What is a light glassy rock formed from frothy lava?
Pumice.
What happened to lava when it cools?
Extrusive igneous rock is formed from the crystallization of minerals as the lava cools.
What is the property of flowing very quikly in a liquid?
Smooth glassy rock that forms when lava cools
What is smooth glassy lava called?
Obsidian.
Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a?
glassy texture
What rock is formed when lava cools down?
igneous rock is formed when lava cools down
What types of crystal are formed if maltan rock cools quickly?
When a magma cools/solidifies, crystals are formed. The quicker the magma cools, the tinier the crystals. A granite for example, which is formed through slow cooling in the Earth's crust, consists out of big crystals. Contrary, magma erupting at the surface (which is then called lava) cools rapidly and consists out of tiny crystals. In extreme cases, the lava cools so rapidly that the resulting rock appears glassy. Hope this helps!
What is a light glassy rock formed from frothy lava?
Pumice.
What does igneous rock made of?
Igneous rocks are formed when lava cools. After a eruption, the lava cools, and the igneous rock is formed.
Where does obsidian rock cools down?
Obsidian is an glassy, extrusive, igneous rock that is found in areas that have experienced rhyolitic eruptions. Obsidian is formed when the rhyolitic lava comes into contact with water. This quick-cooling results in the glassy texture of obsidian.
What happened to lava when it cools?
Extrusive igneous rock is formed from the crystallization of minerals as the lava cools.
What is a type of rock formed when lava or magma cools?
the type of rock formed when lava or magma cools is igneous rock..
When or igneous rocks formed?
When lava cools and solidifies.
What rock is black glassy and was formed by rapidly cooling lava?
The answer is pitchstone. it is and igneous rock.
