- MAGMA
- Hot stuff. underground
- Source of igneous rock
- Pink Floyd album displayed without any hesitation for French prog rockers (5)
- Hard rock it's not
- Igneous rocks, once
- Volcanic rock material
- Hot rock
- It becomes igneous rock
- ____ ray
- Soft rock?
- What igneous rock used to be
- Molten rock
- Igneous rock source
- Igneous rock, originally
- Molten igneous rock
- Molten material
- Subterranean hot stuff
- Lava, while underground
- Volcanic fluid
- Piping hot stuff
- It forms igneous rock
- Lava's precursor
- Basalt's beginning
- Molten rock beneath Earth's surface
- Igneous rock, once
- Lava below the surface
- Subsurface material
- Mantle piece?
- Hot flower?
- Result of melted crust
- Pre-eruption lava
- Volcanic material
- Volcanic outflow
- It's under the crust
- 47 Across outflow
- Lava source
- Geologist's hot stuff
- Granite, once
- Lava, before its exit
- Volcanic output
- Molten rock in a volcano
- Molten material that becomes igneous rock
- In geology, molten rock.
- Igneous-rock producer
- Molten rock in the earth
- Mineral mixture.
- Lava's cousin
- Hot stuff in the earth
- Molten rock within the earth
- Igneous rock's source
- Molten matter
- Molten volcanic material
- Volcanic buildup
- Eruption sight
- Obsidian, once
- Underground rock?
- What lava is before an eruption
- Heated pool?
- Igneous rock material
- ___ chamber (underground pool)
- Above ground : lava :: underground : ___
- It's hot stuff to a geologist
- Molten rock beneath the Earth's surface
- Igneous rock, in time
- Volcanic stuff
- Lava forerunner
- Subterranean molten rock
- Underground lava
- Igneous rock form
- Stuff below Earth's crust
- Volcanic flow
- It bubbles beneath the surface
- Underground soft rock?
- Igneous rock former
- Igneous rock maker
- Lava, prior to surfacing
- Lava, while still underground
- Lava, before an eruption
- Unsolid rock
- Lava's underground counterpart
- Stuff in a volcano
- Volcanic molten rock
- Rock that runs
- Basalt, once
- Hot stuff in the crust
- Hot stuff
- Future pyroclastic rock
- Liquid rock
- Plutonic rock source
- Underground flow
- Oceanic crust, once
- Granite source
- Flowing rock
