a black or dark-colored volcanic glass, usually composed of rhyolite

listen to the pronunciation of a black or dark-colored volcanic glass, usually composed of rhyolite
الإنجليزية - الإنجليزية

تعريف a black or dark-colored volcanic glass, usually composed of rhyolite في الإنجليزية الإنجليزية القاموس.

A black or dark-colored volcanic glass, usually composed of rhyolite
obsidian