Answer: LAVAS

AnswerCrossword Clue
LAVASMolten flows
LAVASVolcanic output.
LAVASMolten outpourings
LAVASScoria
LAVASVolcanic discharges
LAVASVesuvian outputs
LAVASVolcanic outputs
LAVASOutputs from El Chichón
LAVASThey go with the flow
LAVASThey're hot stuff
LAVASSources of pumice.
LAVASVolcanologists study them
LAVASVolcanic outflows
LAVASPahoehoe and aa
LAVASVolcanologists' studies
LAVASPumice sources
LAVASHot rocks
LAVASOutputs from El Chichon
lavasmolten rock from a volcano
lavasLAVA, molten rock that issues from a volcano
LAVASVolcanology specimens
LAVASVolcanic rocks
LAVASVolcanic flowers
LAVASVolcanic flowers?
LAVASBasalt sources
LAVASAa and pahoehoe
LAVASVulcanologists study them
LAVASMolten rocks
LAVASDangerous streamers
LAVASLiquefied rocks
LAVASAa and pahoehoe, for two
LAVASVolcano emissions
LAVASMolten rocks.
LAVASRocks on Stromboli.
LAVASEtnean products.
LAVASRelatives of tuff and trass.
LAVASMolten eruptions.
LAVASScoriae.
LAVASVolcanic rocks.