volcanoclastic

As adjectives the difference between pyroclastic and volcanoclastic

is that pyroclastic is (vulcanology) mostly composed of rock fragments of volcanic origin or comminuted during an eruption while volcanoclastic is .

As a noun pyroclastic

is a rock mostly composed of rock fragments of volcanic origin.

As adjectives the difference between volcaniclastic and volcanoclastic

is that volcaniclastic is being a clastic rock chiefly composed of volcanic materials while volcanoclastic is synonym of pyroclastic.

As a noun volcaniclastic

is a clastic rock chiefly composed of volcanic materials.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective volcanoclastic is

.