"Plagioclase" Natural Recordings by Native Speakers
Plagioclase is a series of solid solution structures between the minerals albite and anorthite in the plagioclase group of the feldspar group of rock-forming tectosilicate minerals. Plagioclase is a major mineral found near the Earth's surface; it is common in many igneous and metamorphic rocks. There are two end-members in the plagioclase solid solution series: anorthite and albite.