There was a time when they thought Etna was home to a Cyclops blindly throwing lava bombs
. During the last few eruptions, families would barbecue meat and fish over the slow-moving lava.
The lake has been coughing out lava bombs containing these crystals for centuries.
Its conditions affect whether Erebus just exhales streams of carbon-rich gas or snorts out the occasional car-sized lava bomb.
"There were lava bombs
as big as your head," he said, describing globs of semi-molten sulfur.
Nuee ardentes, or pyroclastic flows combine glowing ash, fist to house-sized lava bombs
and superheated gases that explode out from erupting volcanoes.
Visitors will learn about geodes, lava bombs
, crystals, obsidian and more at various geology stations.
This creates the predictable panic and mayhem, but the most unexpected result is a fiery geyser that erupts from the bubbling La Brea Tar Pits, sending meteor-like lava bombs
skyrocketing and then back to the ground, filling the night air with cascading ash and finally producing a lava flow that heads right onto Wilshire Boulevard alongside the L.A.
A massive 1,000ft fissure has opened up on Hawaii's Kilaueavolcanohurling 45kg 'lava bombs' 100ft into the air and prompting yet more evacuations.
Mark Clawson, 64, who lives uphill from the latest fissure and so far is defying an evacuation order, said: "It is a near-constant roar akin to a full-throttle 747 interspersed with deafening, earth-shattering explosions that hurtle 100-pound (45-kg) lava bombs 100 feet (30 meters) into the air."
"There are the fossils and 'lava bombs
' from millions of years ago, which have become embedded in the rock."
The molten world of Flamar is strewn with vicious volcanoes spewing lava bombs
, and Trade World is a manic metropolis packed with evil criminals.
Lucy, a geography teacher at Diss High School in Norfolk, said last night: "Lava bombs
of molten rock suddenly started flying through the air.