| 单词 |
molysite |
| 释义 |
molysite Min.|ˈmɒlɪsaɪt|
[said by Dana, the coiner of the name, to be f. Gr. µόλυσις stain, which was app. taken (in error for µόλυσµα) as the n. corresp. to µολύνειν to stain, perh. by confusion with µώλυσις scalding (f. µωλύ(ν)ειν to scald, parboil): see -ite1.
The statement in quot. 1935 as to the origin of the name is incorrect. In Atti d. R. Accad. d. Sci. fis. e matem. (1874) VI. ix. 43, Scacchi attributes the name molysite to Dana (in Syst. Min. (ed. 5)), and renders it in It. as molisite so as to make it conform to It. orthography (as he explains in Lo Spettatore del Vesuviano (1887)).]
Natural ferric chloride, FeCl3, formed as a sublimation product on lavas surrounding fumaroles and occurring (before being hydrated by the air) as a yellow to red film or incrustation.
1868Dana Syst. Min. (ed. 5) 118 Molysite. 1935J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. XIV. lxvi. 41 A. Scacchi observed in recent eruptions a yellowish or brownish-red incrustation associated with the lavas of fumaroles or steam holes. The coloration was attributed to the presence of ferric chloride, FeCl3, and A. Scacchi called the mineral molisite, which J. D. Dana altered to molysite—from µόλυσις, a stain. 1968I. Kostov Mineral. ii. iii. 195 Molysite FeCl3. |
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