| 释义 |
tremolite Min.|ˈtrɛməlaɪt|
[Named 1796, f. Tremola, in Switzerland, where found + -ite1.]
A white or grey (sometimes transparent) variety of amphibole, composed of magnesia and lime, with little or no iron, occurring in fibrous masses or thin-bladed crystals. Also called grammatite.
1799Kirwan Geol. Ess. 219 Not far from St. Gothard, it is found mixed with tremolite, and stratified. 1807T. Thomson Chem. (ed. 3) II. 476 Tremolite..is a compound of silica and lime, or perhaps rather carbonate of lime. 1834–5J. Phillips Geol. in Encycl. Metrop. VI. 563/1 That [sc. marble] of Glen Tilt, characterized by its accompanying tremolites, lies in a quartzose mica slate. 1849Dana Geol. xvii. (1850) 631 Acicular crystals of white hornblende or tremolite.
Hence tremoˈlitic a., of the nature of, or containing tremolite, as tremolitic marble.
1879Dana Man. Geol. (ed. 3) 70 Granular Limestone..Varieties.—a. Statuary Marble;..Tremolitic; contains bladed crystallizations of..tremolite. |