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What are rocks that have a glassy texture called?
Obsidian
What is the most common type of rock on earth's surface?
Sedimentary Rocks. 75% of rocks exposed to the surface are sedimentary.
What are the 3 kinds of rocks?
Sedimentary, Igneous and Metamorphic.
What are igneous extrusions?
== == Extrusive igneous rocks are formed from the solidification of lava on or above the surface. Rapid cooling from exposure to air or water results in rapid crystallization of their component minerals, normally creating a fine grained texture as opposed to intrusive igneous rocks which have a coarser texture. Examples of extrusive igneous rocks would include obsidian, pumice, basalt, and rhyolite.
How are igneous rocks that have high levels of quartz classified?
A rock is considered igneous if it formed directly from the cooling of molten rock.
Where can igneous rocks find?
Igneous rocks are rocks formed by magma. so the best place to find igneous rocks would be by volcanoes or where a volcano once erupted.
What types of rocks are found in Australia?
The types of rocks which are found in Australia are various forms of metamorphic, igneous and sedimentary, the three rock classifications.
When molten rocks cools what rocks form?
igneous rocks
What kind of rocks will find around an erupting volcano?
Igneous Rocks
Where would you expect to find an igneous rock with small crystals?
you would find igneous rocks with small crystals at the bottom of the volcano, this is because when the rocks crack. It brakes apart into igneous rocks
What type of rocks would you expect to find around a volcano crater?
You would find extrusive igneous rocks. Beyond that it depends on the volcano.
Where in your home can you find an igneous rock?
Igneous rocks are rocks formed by magma. so the best place to find igneous rocks would be by volcanoes or where a volcano once erupted.
Do you have to dig deep into the earth to find igneous rocks?
no
Where do you find Diorite Rocks?
Near volcanoes.
What are igneous rocks that form over the surface?
Rhyolititcen rocks.
Are igneous rocks made up of igneous rocks?
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?
Igneous rocks are formed by the solidification of molten materials.
