armalcoliten.

Brit.

/ɑːˈmalkəlʌɪt/, U.S.

/ɑrˈmælkəˌlaɪt/

Origin: From proper names, combined with an English element. Etymons: proper name Armstrong , Aldrin , Collins , -ite suffix¹.

Etymology: < the names of the three U.S. astronauts, Neil Armstrong (1930–2012), Edwin Aldrin (b. 1930), and Michael Collins (1930–2021), who brought the first rock samples from the moon in 1969 + -ite suffix¹.

Mineralogy.

A dark grey, titanium-rich mineral discovered in lunar rock samples and subsequently found (though rarely) in terrestrial rocks.Armalcolite is a titanate of magesium and ferrous iron, (Fe²⁺,Mg)Ti₂O₅, belonging to the pseudobrookite group; its formation requires rapid cooling to prevent conversion to ilmenite and rutile. Crystal system: orthorhombic.

ΘΚΠ

the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > others

crichtonite1813

polymignite1826

warwickite1838

samarskite1849

adelpholite1859

guarinite1859

hielmite1861

tapiolite1868

sipylite1877

koppite1880

stibiotantalite1893

lewisite1895

mossite1898

neotantalite1903

priorite1907

arizonite1909

betafite1912

ampangabeite1913

ishikawaite1922

tanteuxenite1928

thoreaulite1934

simpsonite1937

priderite1951

irinite1955

obruchevite1955

lueshite1961

pseudo-ixiolite1963

wodginite1963

pseudorutile1966

armalcolite1970

1970 A. T. Anderson et al. in Proc. Apollo 11 Lunar Sci. Conf. I. 55 Armalcolite (Fe_0·5Mg_0·5Ti₂O₅), a new magnesium-rich opaque oxide related to the pseudobrookite series, was discovered independently by six research groups in their examination of different samples of the lunar material collected from Mare Tranquillitatis.

1975 Physics & Chem. Earth 9 305 The first terrestrial occurrence of armalcolite..is reported from DuToitspan [in South Africa].

1978 J. M. Pasachoff & M. L. Kutner University Astron. xiv. 398 (caption) A crystal of armalcolite..examined under a polarization microscope.

2006 R. Grapes Pyrometamorphism vi. 211 These are rimmed and replaced by high temperature armalcolite.

This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021).

单词	armalcolite
释义	armalcoliten. Brit. /ɑːˈmalkəlʌɪt/, U.S. /ɑrˈmælkəˌlaɪt/ Origin: From proper names, combined with an English element. Etymons: proper name Armstrong , Aldrin , Collins , -ite suffix¹. Etymology: < the names of the three U.S. astronauts, Neil Armstrong (1930–2012), Edwin Aldrin (b. 1930), and Michael Collins (1930–2021), who brought the first rock samples from the moon in 1969 + -ite suffix¹. Mineralogy. A dark grey, titanium-rich mineral discovered in lunar rock samples and subsequently found (though rarely) in terrestrial rocks.Armalcolite is a titanate of magesium and ferrous iron, (Fe²⁺,Mg)Ti₂O₅, belonging to the pseudobrookite group; its formation requires rapid cooling to prevent conversion to ilmenite and rutile. Crystal system: orthorhombic. ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > others crichtonite1813 polymignite1826 warwickite1838 samarskite1849 adelpholite1859 guarinite1859 hielmite1861 tapiolite1868 sipylite1877 koppite1880 stibiotantalite1893 lewisite1895 mossite1898 neotantalite1903 priorite1907 arizonite1909 betafite1912 ampangabeite1913 ishikawaite1922 tanteuxenite1928 thoreaulite1934 simpsonite1937 priderite1951 irinite1955 obruchevite1955 lueshite1961 pseudo-ixiolite1963 wodginite1963 pseudorutile1966 armalcolite1970 1970 A. T. Anderson et al. in Proc. Apollo 11 Lunar Sci. Conf. I. 55 Armalcolite (Fe_0·5Mg_0·5Ti₂O₅), a new magnesium-rich opaque oxide related to the pseudobrookite series, was discovered independently by six research groups in their examination of different samples of the lunar material collected from Mare Tranquillitatis. 1975 Physics & Chem. Earth 9 305 The first terrestrial occurrence of armalcolite..is reported from DuToitspan [in South Africa]. 1978 J. M. Pasachoff & M. L. Kutner University Astron. xiv. 398 (caption) A crystal of armalcolite..examined under a polarization microscope. 2006 R. Grapes Pyrometamorphism vi. 211 These are rimmed and replaced by high temperature armalcolite. This entry has been updated (OED Third Edition, March 2016; most recently modified version published online December 2021). < n.1970
随便看	seaidol seaimpoldering seainsect seaish seaisland seaivy seajack seajacked seajacker seajacket seajacking seajacks seajelly seajockey seakale seakale beet seakeeping seakemp seakennel seakindliness seakindly seaking seakit seakite seakittie