when you apply heat and pressure to it
Nothing they do not burn. However igneous rock are those formed from molten rock so in the respect that a fire is hot, igneous rocks formed from hot magma.
plutonic and volcanic
when you apply heat and pressure to it
No. It is considered a sedimentary rock, except for the variety anthracite, which is considered a metamorphic rock.
erosion can effect the rock cycle by turning igneouse and metamorphic rocks into sediments and eventualy turn into a sedimentary rock such as sandstone
"Pumice." It is light and porous (filled with air pockets), which makes it significantly less dense than the average rock.
It all depends on the cycle of how it works.. 1st it would need to cause sediments by weathering + erosion. 2nd It would also need compaction and cementation to cause pressure. 3rd you have a sedimentary rock!!
Rock was formed when the earth was made.
The rock formed from molten rock is called igneous rock. It is formed when magma cools and solidifies either underground as intrusive rock or on the Earth's surface as extrusive rock.
Igneous rock is formed.
Igneous rock is formed when magma cools and becomes solid.
Mechanically formed sedimentary rock , Chemically formed sedimentary rock and Organically formed sedimentary rock.