| 释义 |
saussurite Min.|ˈsɔːsjʊəraɪt|
[Named after Prof. H. B. de Saussure (1740–99) who first described it: see -ite1.]
A very compact variety of zoisite. Also Comb. saussurite-gabbro, a variety of gabbro in which the component feldspar and diallage have been partly altered to saussurite.
1811Pinkerton Petral. I. 362 Saussurite..from the western isles of Scotland. 1880F. W. Rudler in Encycl. Brit. XIII. 541/1 H. B. de Saussure..found a greenish mineral, of singular toughness, which he described as jade... Its chemical composition, however, is quite unlike that of jade, and Beudant separated it as a distinct mineral under the name of ‘saussurite’. 1885Judd in Q. Jrnl. Geol. Soc. XLI. 398 The saussurite-gabbros.
Hence saussuˈritic a., resembling, pertaining to, or characterized by the presence of saussurite; saussuritiˈzation (also incorrectly saussuriˈzation), conversion into saussurite, or the process by which saussurite is formed; ˈsaussuritized ppl. a., converted into saussurite, or having component minerals converted into saussurite.
1885Bonney Addr. Geol. Soc. 70 The felspar being changed into a saussuritic mineral. 1889M'Mahon in Q. Jrnl. Geol. Soc. XLV. 532 The felspar in all these rocks affords more or less evidence of incipient saussurization. 1893Geikie Text-Bk. Geol. (ed. 3) 618 Saussuritization, the alteration of plagioclase into an aggregate of needles, prisms, or grains..imbedded in a glass-like matrix.., by an exchange of silica and alkali for lime, iron and water. 1907J. S. Flett in W. A. E. Ussher Geol. Plymouth & Liskeard 101 There are..saussuritized residues of felspar. 1954Mineral. Mag. XXX. 525 The high density..of the rock..distinguishes it from saussuritized gabbros. 1974Nature 25 Jan. 195/2 The plagioclase of the gabbros is often saussuritised. |