aenigmatiten.

Brit.

/ᵻˈnɪɡmətʌɪt/, U.S.

/ᵻˈnɪɡməˌtaɪt/,

/ɛˈnɪɡməˌtaɪt/

Forms: 1800s– aenigmatite, 1800s– enigmatite (chiefly U.S.).

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

Etymology: < German Ainigmatit (A. Breithaupt 1865, in Berg- u. hüttenmännische Zeitung 24 397–8) < ancient Greek αἴνιγμα enigma n. (with reference to its originally problematic nature) + German -it -ite suffix¹.

Mineralogy.

A titanium-containing mineral occurring as long prismatic crystals of a black or dark brown colour, typically as a constituent of pegmatites.Aenigmatite is a titanate and silicate of sodium and ferrous iron, Na₂Feⁱⁱ₅TiSi₆O₂₀. Crystal system: triclinic.

ΘΚΠ

the world > the earth > minerals > types of mineral > other miscellaneous minerals > [noun]

adamanteOE

adamantinec1225

adamant stonea1387

chrysocoll1590

chrysocolla1600

aloe1601

Scythian stone1608

diaspore1802

sideroclepte1814

allagite1823

spherulite1823

aluminide1826

rhodalite1836

aikinite1843

alvite1855

xanthitane1856

belonite1865

aenigmatite1868

opacite1875

viridite1879

neocyanite1882

sideronatrite1882

wittite1924

niggliite1936

anthonyite1963

perryite1965

KREEP1971

1868 J. D. Dana Syst. Mineral. (ed. 5) 285 Ænigmatite has the form and angles of kœlbingite.

1899 Nature 19 Oct. 612/1 Peculiar soda minerals such as enigmatite.

1957 Jrnl. Geol. (Chicago) 65 66/2 The alkaline granite crops out in the northwestern section... The major mineral constituents are antiperthitic microcline, quartz,..and riebeckite, with aegirite, enigmatite,..and magnetite as accessory minerals.

1992 W. A. Deer et al. Introd. Rock-forming Minerals (ed. 2) 221 In most aenigmatites the content of Ti is close to the ideal.

2003 C. Beestman-Kruyshaar in H. R. Reinder & W. Prummel Housing in New Halos iii. 83/2 An analysis of the petrochemical characteristics of this ware..revealed a wide variety of minerals, including biotite..and aenigmatite.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online March 2022).

单词	aenigmatite
释义	aenigmatiten. Brit. /ᵻˈnɪɡmətʌɪt/, U.S. /ᵻˈnɪɡməˌtaɪt/, /ɛˈnɪɡməˌtaɪt/ Forms: 1800s– aenigmatite, 1800s– enigmatite (chiefly U.S.). Origin: A borrowing from German. Etymon: German Ainigmatit. Etymology: < German Ainigmatit (A. Breithaupt 1865, in Berg- u. hüttenmännische Zeitung 24 397–8) < ancient Greek αἴνιγμα enigma n. (with reference to its originally problematic nature) + German -it -ite suffix¹. Mineralogy. A titanium-containing mineral occurring as long prismatic crystals of a black or dark brown colour, typically as a constituent of pegmatites.Aenigmatite is a titanate and silicate of sodium and ferrous iron, Na₂Feⁱⁱ₅TiSi₆O₂₀. Crystal system: triclinic. ΘΚΠ the world > the earth > minerals > types of mineral > other miscellaneous minerals > [noun] adamanteOE adamantinec1225 adamant stonea1387 chrysocoll1590 chrysocolla1600 aloe1601 Scythian stone1608 diaspore1802 sideroclepte1814 allagite1823 spherulite1823 aluminide1826 rhodalite1836 aikinite1843 alvite1855 xanthitane1856 belonite1865 aenigmatite1868 opacite1875 viridite1879 neocyanite1882 sideronatrite1882 wittite1924 niggliite1936 anthonyite1963 perryite1965 KREEP1971 1868 J. D. Dana Syst. Mineral. (ed. 5) 285 Ænigmatite has the form and angles of kœlbingite. 1899 Nature 19 Oct. 612/1 Peculiar soda minerals such as enigmatite. 1957 Jrnl. Geol. (Chicago) 65 66/2 The alkaline granite crops out in the northwestern section... The major mineral constituents are antiperthitic microcline, quartz,..and riebeckite, with aegirite, enigmatite,..and magnetite as accessory minerals. 1992 W. A. Deer et al. Introd. Rock-forming Minerals (ed. 2) 221 In most aenigmatites the content of Ti is close to the ideal. 2003 C. Beestman-Kruyshaar in H. R. Reinder & W. Prummel Housing in New Halos iii. 83/2 An analysis of the petrochemical characteristics of this ware..revealed a wide variety of minerals, including biotite..and aenigmatite. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online March 2022). < n.1868
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