| 释义 |
glauconite Min.|ˈglɔːkənaɪt|
[Named by Keferstein 1828 (in Ger. form glaukonit), f. Gr. γλαυκόν, neut. of γλαυκός adj. (see glaucous) + -ite.]
Hydrous silicate of iron, potassium, and other bases, commonly called green earth.
1836T. Thomson Min. I. 387 Glauconite is employed as a colour by painters. 1851Richardson Geol. (1855) 179 The glauconite, or fire-stone of the chalk formation. 1865Lyell Elem. Geol. xvii. (ed. 6) 311 Marls and sands, often containing much green earth, called glauconite.
Hence glaucoˈnitic a., containing or resembling glauconite.
1864Q. Jrnl. Geol. Soc. XXI. 20 The Glauconitic sands—These sands are of a dark-green colour, and consist of glauconitic and arenaceous grains in a slightly argillaceous paste. 1879Rutley Study Rocks xiv. 289 The lower portion, termed the grey chalk..is generally slightly glauconitic at the base. |