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Volcanic Bomb 

Volcano Learning zone > Volcano Glossary

Lava Bomb USGSVolcanic bombs or Lava bombs (<64mm) are when partially molten lava is ejected from a volcano. As the lava passes through the air it can become aerodynamically shaped. Types of bomb are breadcrust bombs, ribbon bombs, spindle bombs (with twisted ends)and spheroidal bombs. Lava Bomb Roger McLassus