A white crystalline solid, CaF2; r.d. 3.2; m.p. 1360°C; b.p. 2500°C. It occurs naturally as the mineral fluorite (or fluorspar) and is the main source of fluorine. See also fluorite structure.
科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。