acanthiten.

Brit.

/əˈkanθʌɪt/, U.S.

/əˈkænˌθaɪt/

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

Etymology: < German Akanthit (A. Kenngott 1855, in Sitzungsber. der Kaiserlichen Akad. der Wissensch. 15 238) < ancient Greek ἄκανθα thorn (see acanthus n.) + German -it -ite suffix¹. The mineral is so named on account of the shape of its crystals. Compare French acanthite (1858 or earlier).

Mineralogy.

An ore mineral of silver typically occurring as small, silver-grey, thorn-shaped or prismatic crystals, or in polycrystalline masses.Acanthite is silver sulphide, Ag₂S, and is stable only up to 170–180°C; above that temperature the stable polymorph is argentite. Crystal system: monoclinic, though naturally occurring crystals of acanthite are often paramorphs after argentite, which is cubic.

ΚΠ

1856 Q. Jrnl. Chem. Soc. 8 347 (title) On acanthite, a new species of silver-glance.

1922 Physical Rev. 19 532 The electrical reaction of acanthite differs from that of argentite.

1990 Apollo July 11/3 An area was excavated in the object, scored to assure adhesion..and filled with powdered silver sulphide (acanthite).

2004 S. B. Castor & R. W. Thomssen in S. B. Castor & G. C. Ferdock Minerals of Nevada (Nevada Bureau Mines & Geol. Special Pub. 31) ii. 56/2 Enrichment of silver ore by the deposition of sulfide minerals such as acanthite has been a factor in some deposits.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021).

单词	acanthite
释义	acanthiten. Brit. /əˈkanθʌɪt/, U.S. /əˈkænˌθaɪt/ Origin: A borrowing from German. Etymon: German Akanthit. Etymology: < German Akanthit (A. Kenngott 1855, in Sitzungsber. der Kaiserlichen Akad. der Wissensch. 15 238) < ancient Greek ἄκανθα thorn (see acanthus n.) + German -it -ite suffix¹. The mineral is so named on account of the shape of its crystals. Compare French acanthite (1858 or earlier). Mineralogy. An ore mineral of silver typically occurring as small, silver-grey, thorn-shaped or prismatic crystals, or in polycrystalline masses.Acanthite is silver sulphide, Ag₂S, and is stable only up to 170–180°C; above that temperature the stable polymorph is argentite. Crystal system: monoclinic, though naturally occurring crystals of acanthite are often paramorphs after argentite, which is cubic. ΚΠ 1856 Q. Jrnl. Chem. Soc. 8 347 (title) On acanthite, a new species of silver-glance. 1922 Physical Rev. 19 532 The electrical reaction of acanthite differs from that of argentite. 1990 Apollo July 11/3 An area was excavated in the object, scored to assure adhesion..and filled with powdered silver sulphide (acanthite). 2004 S. B. Castor & R. W. Thomssen in S. B. Castor & G. C. Ferdock Minerals of Nevada (Nevada Bureau Mines & Geol. Special Pub. 31) ii. 56/2 Enrichment of silver ore by the deposition of sulfide minerals such as acanthite has been a factor in some deposits. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < n.1856
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