Tetradymite group minerals and other Bi-Se-Te-S minerals from the Kawazu mine, Shizuoka prefecture, Japan

Abstract

Purpose of this study is to identify the chemical composition range of tetradymite group minerals and other Bi-Se-Te-S minerals from the Kawazu mine. Tetradymite group minerals from the Kawazu mine have a wide variety of chemical composition, which are identified with tellurobismuthite, tetradymite, kawazulite, skippenite and paraguanajuatite. There is possibility that Bi-Se-Te-S minerals form the Kawazu mine are identified with rucklidgeite and Se-analogue of rucklidgeite, or new type minerals.