alnöiten.

Brit.

/ˈalnəʊʌɪt/, U.S.

/ˈælnoʊˌaɪt/

Forms: 1800s– alnoite, 1800s– alnöite.

Origin: From a proper name, combined with an English element; modelled on a German lexical item. Etymons: proper name Alnö , -ite suffix¹.

Etymology: < Alnö (commonly, with suffixed definite article, Alnön), the name of a Swedish island + -ite suffix¹, after German Alnöit ( H. Rosenbusch Mikroskopische Physiogr. der Mineralien u. Gesteine (ed. 2, 1887) II. 805).

Geology.

A dark, alkaline, intrusive igneous rock chiefly composed of augite, biotite, and olivine phenocrysts in a groundmass of augite and melilite.

ΚΠ

1888 Nature 15 Mar. 459/2 New rock-names [in Rosenbusch Mikroskopische Physiogr. der Mineralien u. Gesteine] are Tholeiite (p. 504) and Alnöite (p. 805).

1924 J. G. A. Skerl tr. A. Wegener Orig. Continents & Oceans iv. 45 He found no fewer than five parallels, namely..the older granite,..kimberlite, alnöite etc.

1988 Nature 17 Mar. 253/2 Lamprophyres are a diverse ‘clan’ of..alkaline igneous rocks, here taken to include..ultramafic lamprophyres (such as alnoites).

2002 New Scientist 17 Aug. 50/3 They could then have risen to the surface some 34 million years ago via pipes of alnöite—a type of igneous rock.

This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	alnöite
释义	alnöiten. Brit. /ˈalnəʊʌɪt/, U.S. /ˈælnoʊˌaɪt/ Forms: 1800s– alnoite, 1800s– alnöite. Origin: From a proper name, combined with an English element; modelled on a German lexical item. Etymons: proper name Alnö , -ite suffix¹. Etymology: < Alnö (commonly, with suffixed definite article, Alnön), the name of a Swedish island + -ite suffix¹, after German Alnöit ( H. Rosenbusch Mikroskopische Physiogr. der Mineralien u. Gesteine (ed. 2, 1887) II. 805). Geology. A dark, alkaline, intrusive igneous rock chiefly composed of augite, biotite, and olivine phenocrysts in a groundmass of augite and melilite. ΚΠ 1888 Nature 15 Mar. 459/2 New rock-names [in Rosenbusch Mikroskopische Physiogr. der Mineralien u. Gesteine] are Tholeiite (p. 504) and Alnöite (p. 805). 1924 J. G. A. Skerl tr. A. Wegener Orig. Continents & Oceans iv. 45 He found no fewer than five parallels, namely..the older granite,..kimberlite, alnöite etc. 1988 Nature 17 Mar. 253/2 Lamprophyres are a diverse ‘clan’ of..alkaline igneous rocks, here taken to include..ultramafic lamprophyres (such as alnoites). 2002 New Scientist 17 Aug. 50/3 They could then have risen to the surface some 34 million years ago via pipes of alnöite—a type of igneous rock. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1888
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