Astromineralogy, experimental astrophysics, material circulation in the galaxy
Dust grains condensed around evolved stars are injected into the interstellar medium. Some of them survived processing in the the interstellar medium and protoplanetary disks and become a building block of the new stars and planetary systems.The solar system formed via dust and gas disk around the young sun as well 4.6 Gyr ago and will provide materials into space at the last stage of the stellar evolution. Such a cycle of materials between circumstellar environments and interstellar medium is referred to as "galactic material circulation".
1. Takigawa A., Kim T-H., Igami Y., Umemoto T., Tsuchiyama A., Koike C. Matsuno J., and Watanabe T. (2019) Formation of transition alumina dust around AGB stars: condensation experiments using induction thermal plasma systems. The Astrophysical Journal Letters, 878:L7 (8pp).