adularian.

Brit.

/ˌadjᵿˈlɛːrɪə/,

/ˌadʒᵿˈlɛːrɪə/, U.S.

/ˌædʒəˈlɛriə/,

/ˌædjəˈlɛriə/

Origin: A borrowing from Italian. Etymon: Italian adularia.

Etymology: < Italian adularia ( E. Pini Memoria mineralogica sulla montagna e suoi contorni di S. Gottardo (1783) 115) < Adula , the name of an area of the Alps east of the St Gotthard Pass + -ia -ia suffix¹, with insertion of -r- apparently for euphony.

Mineralogy.

A potassium feldspar that occurs in schists (notably in the Swiss Alps), often with a distinctive opalescence, and is now regarded as a variety of orthoclase.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > orthoclase > varieties

adularia1789

ice-spar1816

necronite1819

murchisonite1827

rhyacolite1831

Amazon-stone1836

ryakonite1837

krablite1844

1789 Crit. Rev. Dec. 481 A new felt spar, styled the adularia, has been discovered on the Stella, near St. Gothard, by M. Spini.

1799 European Mag. & London Rev. Dec. 406/1 Here Adularia shines with vivid glow, And gems of chrystal sparkle to the day.

1850 C. G. B. Daubeny Introd. Atomic Theory (ed. 2) xii. 416 In glassy felspar..there is more soda than in orthoclase and adularia, the minerals usually found in granite.

1959 C. S. Hurlbut Dana's Man. Mineral. (ed. 17) 492 Some adularia shows an opalescent play of colours and is called moonstone.

2004 W. D. Nesse Introd. Optical Mineral. (ed. 3) x. 145/1 The historical terminology that distinguished four varieties of K-feldspar (microcline, orthoclase, sanidine, and adularia) was based primarily on physical and optical properties.

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

单词	adularia
释义	adularian. Brit. /ˌadjᵿˈlɛːrɪə/, /ˌadʒᵿˈlɛːrɪə/, U.S. /ˌædʒəˈlɛriə/, /ˌædjəˈlɛriə/ Origin: A borrowing from Italian. Etymon: Italian adularia. Etymology: < Italian adularia ( E. Pini Memoria mineralogica sulla montagna e suoi contorni di S. Gottardo (1783) 115) < Adula , the name of an area of the Alps east of the St Gotthard Pass + -ia -ia suffix¹, with insertion of -r- apparently for euphony. Mineralogy. A potassium feldspar that occurs in schists (notably in the Swiss Alps), often with a distinctive opalescence, and is now regarded as a variety of orthoclase. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > tectosilicate > [noun] > feldspar > orthoclase > varieties adularia1789 ice-spar1816 necronite1819 murchisonite1827 rhyacolite1831 Amazon-stone1836 ryakonite1837 krablite1844 1789 Crit. Rev. Dec. 481 A new felt spar, styled the adularia, has been discovered on the Stella, near St. Gothard, by M. Spini. 1799 European Mag. & London Rev. Dec. 406/1 Here Adularia shines with vivid glow, And gems of chrystal sparkle to the day. 1850 C. G. B. Daubeny Introd. Atomic Theory (ed. 2) xii. 416 In glassy felspar..there is more soda than in orthoclase and adularia, the minerals usually found in granite. 1959 C. S. Hurlbut Dana's Man. Mineral. (ed. 17) 492 Some adularia shows an opalescent play of colours and is called moonstone. 2004 W. D. Nesse Introd. Optical Mineral. (ed. 3) x. 145/1 The historical terminology that distinguished four varieties of K-feldspar (microcline, orthoclase, sanidine, and adularia) was based primarily on physical and optical properties. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online December 2021). < n.1789
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