alkalic volcanic rock

alkaline volcanic rock

altered volcanic rock

Basic volcanic rock

basic volcanic rock of the late Ladinian period

bimodal volcanic rock

Cenozoic volcanic rock

clastic-volcanic

completely decomposed volcanic rock

completely weathered volcanic rock

Daxingzhuang Volcanic Rock Formation

decomposed volcanic rock

Deep Volcanic Rock

dolomitic volcanic rock

epiclastic volcanic rock

Faices and structure of volcanic rock

felsic volcanic rock

fragmental volcanic rock

fresh volcanic rock