宇宙鉱物学が拓く銀河物質循環

抄録

Astromineralogy has developed as an interdisciplinary field between astronomy and mineralogy since the discovery of crystalline silicate dust from stellar atmospheres by infrared observations in the late 1990s. Cosmic dust repeatedly forms and is destroyed along with the physical evolution of stars, and thus is a carrier of metallic elements in the galactic material circulation. Minerals found in the solar system and on Earth are observed outside the solar system as well. In addition, presolar grains are the very survivors of circumstellar dust, and are the key to understanding the observed dust and its formation process. Understanding the galactic material circulation through the formation and evolution of cosmic dust requires knowledge not only of astronomy but also of petrology and mineralogy. In this paper, I review the progress of astromineralogy including the author's research and discuss how mineralogy has contributed to the development of astromineralogy.