| 释义 |
‖ saphir d'eau|safir do|
Also sapphir(e) d'eau.
[Fr., lit. ‘sapphire of water’.]
A translucent blue variety of cordierite occurring in Sri Lanka; = water-sapphire.
In Fr. the term was orig. used by mineralogists to refer to blue quartz.
1820R. Jameson Syst. Mineral. (ed. 3) I. 174 The sapphire d'eau of collectors. 1897L. Fletcher Introd. Study Mineral. 106 Cordierite is a silicate of magnesium, iron and aluminium; its transparent variety is the Saphir d'eau of jewellery. 1925Kraus & Holden Gems & Gem Materials ii. 165 Ceylon is the most important locality, and the gems from that country have sometimes been called saphir d'eau, or ‘water sapphire’. 1936H. P. Whitlock Story of Gems 175 Iolite. This silicate of magnesium, aluminium and iron is better known as water-sapphire (saphir d'eau). |