Forms: 18 zeilanite, 18 zeylanite. (Show Less)
Origin: A borrowing from German. Etymon: German Zeilanit.
Etymology: < German Zeilanit, Zeylanit, variants of Ceylanit (1801 or earlier; < French ceylanite ceylonite n.), with remodelling of the suffix after -ite suffix1.Compare earlier ceylonite n.
The German forms with initial z reflect German †Zeilan , †Zeylan , former variants of Ceylon , †Ceylan , the former name of Sri Lanka ( < English Ceylon , †Ceylan : see Ceylon n.). In German, the first syllable of the place name is usually pronounced /tsai/ as a result of spelling pronunciation (hence the diphthong in English), with z subsequently sometimes replacing c to represent the initial /ts/.
Mineralogy. Now rare.
A variety of spinel containing iron, first discovered in Sri Lanka; = ceylonite n.Formula: (Mg, Fe)Al2O4.
1815 C. L. Giesecke Syllabus Mineral Syst. 6 (table) Family of Rubies... Zeylanite.
1851 H. Watts tr. L. Gmelin Hand-bk. Chem. V. 275 Aluminate of Ferrous Oxide.—Zeilanite [Ger. Zeilanit].
1892 Jrnl. Analyt. & Appl. Chem. 9 584 It is assumed that spinel must contain MgO, that gahnite and franklinite must contain ZnO, that zeilanite must contain Al2O3.
1956 Parl. Debates (Austral. House of Representatives) 10 1475/2 Will the Minister advise..whether he is aware of the delay in electrical construction at mines, mills and industrial projects, due to the shortage of zeilanite.
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