单词 | dipyre |
释义 | dipyre Min.|dɪˈpaɪə(r)| [mod. (Haüy 1801) ad. L. dipȳros, Gr. δίπυρος twice put into the fire, f. δι- twice + πῦρ fire: so called because when heated it exhibits both phosphorescence and fusion.] A silicate of alumina with small proportions of the silicates of soda and lime, occurring in square prisms.
1804Fourcroy's Chem. II. 441 The dipyre. 1807Aikin Dict. Chem. & Min. s.v. 1868Dana Min. §302 Dipyre occurs in rather coarse crystals, often large or stout, and rarely columnar, in metamorphic rocks. |

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