when you apply heat and pressure to it
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.
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.
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!!
intrusive rocks have a finer texture and extrusive such as lava rock are more course. intrusive rocks are cooled within the earth and extrusive cooled outside the earth.
It comes from the melting of material within the Earth's mantle. Moltan Rock comes from the lava chambers, the temperature makes the bits of sedimaentary and igneouse rock wich is made into lava , all the time this takes place in the earths inner third the mantle.
The Rock cycle is a continuous and dynamic process
The process is; heat, and pressure.