Plural of amphibole; a group of silicate minerals that commonly occur in igneous and metamorphic rocks.
Simple plural of 'amphibole' (from Greek 'amphibolos'), used when referring to multiple mineral samples or the mineral group as a whole.
Amphiboles are so common in Earth's rocks that geologists use them as a clock—the chemical composition of amphiboles in ancient rocks tells the temperature and pressure when rocks formed, unlocking Earth's geological history.
Complete word intelligence in one call. Free tier — 50 lookups/day.