malthaciten.

Brit.

/ˈmalθəsʌɪt/, U.S.

/ˈmælθəsaɪt/

Forms: 1800s– malthacite, 1800s– malthazite.

Origin: A borrowing from German. Etymon: German Malthacit.

Etymology: < German Malthacit (A. Breithaupt 1837, in Jrnl. f. prakt. Chem. 10 510) < ancient Greek μαλθακός soft (compare mild adj.) + German -it -ite suffix¹.

Mineralogy. Now historical.

A white or yellowish clay similar to fuller's earth, usually occurring as scales.

ΚΠ

1849 H. Watts tr. L. Gmelin Hand-bk. Chem. III. 419 Malthacite analyzed by Meissner appears to be Al²O³, 8SiO² + 20Aq.

1883 Encycl. Brit. XVI. 424/2 Malthazite, from Steindörfel near Bautzen.

1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 695 Malthacite is described as occurring in thin laminæ or scales.

1993 A. M. Clark Hey's Mineral Index (ed. 3) 424/2 Malthacite,..an unidentified clay..Classed with fuller's earth by E. S. Dana (1892).

This entry has been updated (OED Third Edition, June 2000; most recently modified version published online March 2022).

单词	malthacite
释义	malthaciten. Brit. /ˈmalθəsʌɪt/, U.S. /ˈmælθəsaɪt/ Forms: 1800s– malthacite, 1800s– malthazite. Origin: A borrowing from German. Etymon: German Malthacit. Etymology: < German Malthacit (A. Breithaupt 1837, in Jrnl. f. prakt. Chem. 10 510) < ancient Greek μαλθακός soft (compare mild adj.) + German -it -ite suffix¹. Mineralogy. Now historical. A white or yellowish clay similar to fuller's earth, usually occurring as scales. ΚΠ 1849 H. Watts tr. L. Gmelin Hand-bk. Chem. III. 419 Malthacite analyzed by Meissner appears to be Al²O³, 8SiO² + 20Aq. 1883 Encycl. Brit. XVI. 424/2 Malthazite, from Steindörfel near Bautzen. 1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 695 Malthacite is described as occurring in thin laminæ or scales. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 424/2 Malthacite,..an unidentified clay..Classed with fuller's earth by E. S. Dana (1892). This entry has been updated (OED Third Edition, June 2000; most recently modified version published online March 2022). < n.1849
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