miaskiten.

Brit.

/ˈmʌɪəskʌɪt/, U.S.

/ˈmaɪəˌskaɪt/

Forms: 1800s miascyte, 1800s– miascite, 1800s– miaskite.

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

Etymology: < German Miascit (G. Rose 1839, in Ann. der Physik u. Chem. 47 376) < Miask (now Miass ), the name of a town on the river Miass in the Urals, where the rock was first obtained + German -it -ite suffix¹. Compare earlier miascite n.In his description of this rock, Rose does not mention the earlier use of miascite n. as the name of a mineral.

Geology.

Any mottled black and white nepheline-syenite that also contains oligoclase, microperthite, and biotite.

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

1840 London, Edinb., & Dublin Philos. Mag. 17 109 The Ilmen mountains consist for the greatest part of a rock of white felspar, black uniaxial mica, and nepheline... On account of its evident peculiarity and its large distribution, Professor G. Rose has proposed for it the name miascite (from the river Mias in the neighbourhood of its occurrence).

1840 London, Edinb., & Dublin Philos. Mag. 17 117 The elæoliths, whether in syenite, miascite, nepheline-rock, albite, &c., do not occur accompanied by free quartz.

1854 J. D. Dana Syst. Mineral. (ed. 4) II. 246 Miascite, a granular slaty rock consisting of orthoclase, mica, and elæolite, with sometimes quartz, albite, and hornblende.

1860 Amer. Jrnl. Sci. 29 66 These minerals..exist as accidental constituents of a granitic rock composed of quartz, feldspar, and black mica, thus constituting a miascite analogous to that of the Ilmen mountains.

1897 Amer. Naturalist 31 954 The Ilmen Mountains are a subordinate range of the Ural chain composed largely of eleolite-syentite, classical under Gustav Rose's name of miascite. This rock is..rich in a variety of interesting minerals.

1920 A. Holmes Nomencl. Petrol. 157 Miaskite,..a variety of nepheline-syenite containing biotite as the chief mafic constituent. (Miask, Urals.)

1938 A. Johannsen Descriptive Petrogr. Igneous Rocks IV. 164 While Rose gave the name miascite to the whole formation, later writers usually have limited it to the nepheline-bearing portion.

1968 Jrnl. Petrol. 9 140 (table) Miaskite, Urals.

1987 R. L. Bates & J. A. Jackson Gloss. Geol. (ed. 3) 418/2 Miaskite... Also spelled: miascite. Not recommended usage.

1995 L. N. Kogarko et al. Alkaline Rocks & Carbonatites of World II. 66/2 The main rock-forming minerals of the miaskites.

This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).

单词	miaskite
释义	miaskiten. Brit. /ˈmʌɪəskʌɪt/, U.S. /ˈmaɪəˌskaɪt/ Forms: 1800s miascyte, 1800s– miascite, 1800s– miaskite. Origin: A borrowing from German. Etymon: German Miascit. Etymology: < German Miascit (G. Rose 1839, in Ann. der Physik u. Chem. 47 376) < Miask (now Miass ), the name of a town on the river Miass in the Urals, where the rock was first obtained + German -it -ite suffix¹. Compare earlier miascite n.In his description of this rock, Rose does not mention the earlier use of miascite n. as the name of a mineral. Geology. Any mottled black and white nepheline-syenite that also contains oligoclase, microperthite, and biotite. 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 1840 London, Edinb., & Dublin Philos. Mag. 17 109 The Ilmen mountains consist for the greatest part of a rock of white felspar, black uniaxial mica, and nepheline... On account of its evident peculiarity and its large distribution, Professor G. Rose has proposed for it the name miascite (from the river Mias in the neighbourhood of its occurrence). 1840 London, Edinb., & Dublin Philos. Mag. 17 117 The elæoliths, whether in syenite, miascite, nepheline-rock, albite, &c., do not occur accompanied by free quartz. 1854 J. D. Dana Syst. Mineral. (ed. 4) II. 246 Miascite, a granular slaty rock consisting of orthoclase, mica, and elæolite, with sometimes quartz, albite, and hornblende. 1860 Amer. Jrnl. Sci. 29 66 These minerals..exist as accidental constituents of a granitic rock composed of quartz, feldspar, and black mica, thus constituting a miascite analogous to that of the Ilmen mountains. 1897 Amer. Naturalist 31 954 The Ilmen Mountains are a subordinate range of the Ural chain composed largely of eleolite-syentite, classical under Gustav Rose's name of miascite. This rock is..rich in a variety of interesting minerals. 1920 A. Holmes Nomencl. Petrol. 157 Miaskite,..a variety of nepheline-syenite containing biotite as the chief mafic constituent. (Miask, Urals.) 1938 A. Johannsen Descriptive Petrogr. Igneous Rocks IV. 164 While Rose gave the name miascite to the whole formation, later writers usually have limited it to the nepheline-bearing portion. 1968 Jrnl. Petrol. 9 140 (table) Miaskite, Urals. 1987 R. L. Bates & J. A. Jackson Gloss. Geol. (ed. 3) 418/2 Miaskite... Also spelled: miascite. Not recommended usage. 1995 L. N. Kogarko et al. Alkaline Rocks & Carbonatites of World II. 66/2 The main rock-forming minerals of the miaskites. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022). < n.1840
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