Some rocks are pyroclastic but most are not.
Pyroclastic flow.
volcanic pyroclastic = 'a'ā
the root of pyroclastic is "cla" meaning to break
Beware the pyroclastic flow!
Pyroclastic flows occur during explosive eruptions of volcanoes.
an explosive volcano will usually have a pyroclastic flow
Blocks are the most dangerous pyroclastic material.
Yes. It is not uncommon for rhyolitic material to form pyroclastic flows.
No. Magma is molten rock that is beneath earth's surface. When it erupts it can form lava or pyroclastic material. Although pyroclastic material can form rocks, most rocks are not from pyroclastic material.
Pyroclastic flow
Pyroclastic material is more often felsic (acidic) or intermediate, but mafic (basic) pyroclastic material may also occur.