n.蓝线石...

dumortierite的音标：dumortierite的英式发音音标为：[dju:'mɔ:tɪəraɪt]dumortierite的美式发音音标为：[dju'mɔtiəˌraɪt]...

A salt that is derived from both boric acid and acid and occurs naturally in dumortierite.'硼'.''''.'硅酸盐'.''由''.'硼'. ''酸和硅酸反应而得的一种盐,存在于自然界蓝线石...