i think
igneous
If it finds its way dowm into the earths crust through rock cycle and then is melted and mixes together to form molten magma, it could re-erupt to the earths surface and form an extrusive igneous rock or cool and solidify within the earths crust as an intrusive igneous rock.
a Obsidion rock
Intrusive igneous rock (plutonic rock).
There is an igneous rock called Orbicular Rhyolite which is formed when lava flows onto the earths surface. It gets the nick name "Dalmatian Rock" from the spots, or orbs on its surface. The orbs form when molten lava reacts with fragments of xenoliths. The main components of Rhyolite are Feldspar and Quartz.
Many minerals occur naturally on the earths surface in rock form
igneous
A geologic map shows rock types making up earths surface.
Some types of igneous and sedimentary rocks can form on Earth's surface.
Limestone, Conglomerate Cross bedded sandstone A Fulgerite
extrusive igneous rock
intrusive igneous rock
An EarthQuake Accurs
If it finds its way dowm into the earths crust through rock cycle and then is melted and mixes together to form molten magma, it could re-erupt to the earths surface and form an extrusive igneous rock or cool and solidify within the earths crust as an intrusive igneous rock.
through volcanoes, lava comes out and when it cools it turns into igneous rock.
Igneous rocks can form both above and below the Earth's surface. When magma erupts from a volcano and cools quickly, it creates extrusive igneous rocks, such as basalt, on the surface. Conversely, intrusive igneous rocks, like granite, form when magma cools slowly beneath the surface. Both types result from the cooling and solidification of molten rock.
Igneous rocks do form on the earths surface. A volcano erupts and the lava that comes out cools and hardens forming igneous rocks.