nepheline-syeniten.

Brit.

/ˌnɛfəliːnˈsʌɪənʌɪt/, U.S.

/ˈˌnɛfəˌlinˈsaɪəˌnaɪt/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: nepheline n., syenite n.

Etymology: < nepheline n. + syenite n., after German Nephelin-Syenit (H. Rosenbusch Mikroskopische Physiographie der Mineralien u. Gesteine (1877) II. 203).

Geology.

A plutonic rock which resembles syenite in being composed of alkali feldspars and mafic minerals, but also contains nepheline, is rich in sodium but poor in quartz, and frequently contains rare minerals as accessories.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > syenite > varieties of

miaskite1840

uralite-syenite1868

foyaite1878

nepheline-syenite1885

pulaskite1891

nordmarkite1892

larvikite1895

shonkinite1895

1885 Science 19 June 510 The mountain is partly composed of augite syenite, and partly of nepheline syenite.

1938 A. Johannsen Descr. Petrogr. Igneous Rocks IV. 78 The nepheline-syenites are generally gray rocks with a greasy luster, usually moderately dark... Yellows, reds, and blues are not unknown.

1967 M. J. Coe Ecol. Alpine Zone Mt. Kenya 11 The lava cooled slowly and produced a material that is highly crystalline. These rocks are called nepheline-syenite and contain large Felspar crystals up to 3 cm long as well as smaller nepheline crystals.

1983 K. Clark Potter's Man. iii. 90 Nepheline syenite..similar to feldspar..can be used in both earthenware and stoneware glazes, working well with an alkaline frit.

2000 Icarus 147 421 TIMS six-channel simulations have a best match to sodalite (Na₈Al₆Si₆O₂₄C₁₂), a mineral associated with nephaline syenite rocks.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	nepheline-syenite
释义	nepheline-syeniten. Brit. /ˌnɛfəliːnˈsʌɪənʌɪt/, U.S. /ˈˌnɛfəˌlinˈsaɪəˌnaɪt/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: nepheline n., syenite n. Etymology: < nepheline n. + syenite n., after German Nephelin-Syenit (H. Rosenbusch Mikroskopische Physiographie der Mineralien u. Gesteine (1877) II. 203). Geology. A plutonic rock which resembles syenite in being composed of alkali feldspars and mafic minerals, but also contains nepheline, is rich in sodium but poor in quartz, and frequently contains rare minerals as accessories. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > syenite > varieties of miaskite1840 uralite-syenite1868 foyaite1878 nepheline-syenite1885 pulaskite1891 nordmarkite1892 larvikite1895 shonkinite1895 1885 Science 19 June 510 The mountain is partly composed of augite syenite, and partly of nepheline syenite. 1938 A. Johannsen Descr. Petrogr. Igneous Rocks IV. 78 The nepheline-syenites are generally gray rocks with a greasy luster, usually moderately dark... Yellows, reds, and blues are not unknown. 1967 M. J. Coe Ecol. Alpine Zone Mt. Kenya 11 The lava cooled slowly and produced a material that is highly crystalline. These rocks are called nepheline-syenite and contain large Felspar crystals up to 3 cm long as well as smaller nepheline crystals. 1983 K. Clark Potter's Man. iii. 90 Nepheline syenite..similar to feldspar..can be used in both earthenware and stoneware glazes, working well with an alkaline frit. 2000 Icarus 147 421 TIMS six-channel simulations have a best match to sodalite (Na₈Al₆Si₆O₂₄C₁₂), a mineral associated with nephaline syenite rocks. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1885
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