What materials did I'M Pei use on his buildings?

I.M. Pei often employed materials such as concrete, glass, and steel in his architectural designs. He was known for his innovative use of glass, particularly in large façades and skylights, to create light-filled spaces. Additionally, he incorporated natural materials like stone and granite to enhance the aesthetic and structural qualities of his buildings. Pei's thoughtful selection of materials contributed to the harmony and elegance of his architectural style.