osmiridiumn.

Brit.

/ˌɒzmᵻˈrɪdɪəm/, U.S.

/ˌɑzməˈrɪdiəm/

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

Etymology: < German Osmiridium (C. F. Naumann Lehrbuch der Mineralogie (1828) 545; earlier as Osm-iridium (H. Steffens Vollständiges Handb. der Oryktognosie (1824) IV. 671)), shortened < Osmium-iridium (K. C. von Leonhard Handbuch der Oryktognosie (1821) 173) < Osmium osmium n. + Iridium iridium n.

A naturally occurring alloy of osmium and iridium, often with traces of other metals; (Mineralogy) an alloy having a cubic crystal structure and in which iridium predominates. Cf. iridosmine n.

ΘΚΠ

the world > the earth > minerals > types of mineral > native elements and alloys > [noun] > native alloys

iridosmine1827

platiniridium1848

allemontite1850

sysertskite1850

nevyanskite1854

osmiridium1854

shakudo1860

bismuth-silver1863

telluric bismuth1866

wehrlite1874

josephinite1892

1854 J. D. Dana Syst. Mineral. (ed. 4) Index 527 Osmiridium.

1859 Sci. Amer. 20 Aug. 118/1 Professor W. Gibbs..stated incidentally that the specific gravity of some osmiridium which he tested was 19·35.

1922 T. M. Lowry Inorg. Chem. xlii. 819 Ruthenium dioxide..is obtained by roasting the disulphide or the sulphate in air, or by burning the crude osmiridium alloy in an oxidising atmosphere.

1946 National Geographic Mag. July (verso front cover) (advt.) The tip is a ball of micro-smooth, wear-resistant Osmiridium—the most corrosion-proof metal known—fused to 14K gold.

1963 Mineral. Mag. 33 714 Iridosmine for the hexagonal phase..and Osmiridium for the cubic phase.

1988 Mining Ann. Rev. (Nexis) June 131 Alluvial platinum and osmiridium are also being sought in the Wilson River area of Tasmania and in the south of New Zealand's South Island.

1990 W. L. Roberts et al. Encycl. Minerals (ed. 2) Osmiridium, (Ir, Os). Ir>Os. Crystal system: Cubic.

2001 O. Sacks Uncle Tungsten iv. 43 Uncle had given me..one of his osmiridium grains (I recognized it), which was almost a dozen times as dense.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	osmiridium
释义	osmiridiumn. Brit. /ˌɒzmᵻˈrɪdɪəm/, U.S. /ˌɑzməˈrɪdiəm/ Origin: A borrowing from German. Etymon: German Osmiridium. Etymology: < German Osmiridium (C. F. Naumann Lehrbuch der Mineralogie (1828) 545; earlier as Osm-iridium (H. Steffens Vollständiges Handb. der Oryktognosie (1824) IV. 671)), shortened < Osmium-iridium (K. C. von Leonhard Handbuch der Oryktognosie (1821) 173) < Osmium osmium n. + Iridium iridium n. A naturally occurring alloy of osmium and iridium, often with traces of other metals; (Mineralogy) an alloy having a cubic crystal structure and in which iridium predominates. Cf. iridosmine n. ΘΚΠ the world > the earth > minerals > types of mineral > native elements and alloys > [noun] > native alloys iridosmine1827 platiniridium1848 allemontite1850 sysertskite1850 nevyanskite1854 osmiridium1854 shakudo1860 bismuth-silver1863 telluric bismuth1866 wehrlite1874 josephinite1892 1854 J. D. Dana Syst. Mineral. (ed. 4) Index 527 Osmiridium. 1859 Sci. Amer. 20 Aug. 118/1 Professor W. Gibbs..stated incidentally that the specific gravity of some osmiridium which he tested was 19·35. 1922 T. M. Lowry Inorg. Chem. xlii. 819 Ruthenium dioxide..is obtained by roasting the disulphide or the sulphate in air, or by burning the crude osmiridium alloy in an oxidising atmosphere. 1946 National Geographic Mag. July (verso front cover) (advt.) The tip is a ball of micro-smooth, wear-resistant Osmiridium—the most corrosion-proof metal known—fused to 14K gold. 1963 Mineral. Mag. 33 714 Iridosmine for the hexagonal phase..and Osmiridium for the cubic phase. 1988 Mining Ann. Rev. (Nexis) June 131 Alluvial platinum and osmiridium are also being sought in the Wilson River area of Tasmania and in the south of New Zealand's South Island. 1990 W. L. Roberts et al. Encycl. Minerals (ed. 2) Osmiridium, (Ir, Os). Ir>Os. Crystal system: Cubic. 2001 O. Sacks Uncle Tungsten iv. 43 Uncle had given me..one of his osmiridium grains (I recognized it), which was almost a dozen times as dense. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1854
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