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Is obsidian metamorphic igneous or sedimentary?
Obsidian is an igneous rock.
Which rock am igneous extrusive black?
Basalt, pumice, and obsidian are all extrusive igneous rocks which can appear as black rock.
What is a rock made from harden molten rock?
A rock that is formed from hardened molten rock is called an igneous rock. Igneous rocks can be formed from the cooling and solidifying of magma or lava. Examples of igneous rocks include basalt, granite, and obsidian.
What type of rock is formed by cool lava or magma?
An igneous rock is formed when magma cools and hardens. Some examples of igneous rocks are pumice and obsidian.
What Forms when molten rocks cools and hardens?
When molten rock cools and hardens, it forms igneous rock. Igneous rocks can be classified as intrusive (formed beneath the Earth's surface) or extrusive (formed on the Earth's surface). Examples of igneous rocks include granite, basalt, and obsidian.
Is obsidian an igneous rock?
Obsidian is an igneous rock.So the answer is YES.
Is obsidian man made?
Obsidian is an igneous rock. Rocks are not man-made. Man-made substances that are similar to rock include concrete and cement.
What rocks are formed from melted rock that has cooled and solidified?
Igneous rocks are formed from melted rock that has cooled and solidified. Examples include granite, basalt, and obsidian.
Which rock type forms from the solidification of magma?
Igneous rocks form from the solidification of magma. This process can occur either underground (intrusive igneous rocks) or at the surface (extrusive igneous rocks), depending on the cooling rate of the magma. Examples of igneous rocks include granite, basalt, and obsidian.
Which one of these is an igneous rock is it gabbro obsidian peridotite or chert?
Gabbro, obsidian, and peridotite are examples of igneous rocks. Chert is a sedimentary rock formed from the accumulation of silica-rich microorganisms or chemical precipitation, not from the cooling and solidification of molten magma like igneous rocks.
What kind of rock forms from magma?
Igneous rocks form from magma as it cools and solidifies. Examples include granite, basalt, and obsidian.
What kind of igneous rock is obsidian?
Obsidian is an igneous rock. However it differs from other rocks because it contains no minerals. It consists of natural glass, which is not a mineral because it has no crystal structure.Answers from McDougal Littell, Earth Science book
