unioniten.

Brit.

/ˈjuːnɪənʌɪt/, U.S.

/ˈjunjəˌnaɪt/

Origin: From a proper name, combined with an English element. Etymons: proper name Unionville , -ite suffix¹.

Etymology: < union- (in the name of Unionville, Pennsylvania, where the mineral was found in 1849: see quot. 1849) + -ite suffix¹.

Mineralogy. Now rare.

A form of very pure, white to yellowish-white zoisite. Unionite is a hydrated silicate of calcium and aluminium, Ca₂Al₃(SiO₄)(Si₂O₇)O(OH). Crystal system: orthorhombic.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > zoisite

zoisite1805

thulite1820

unionite1849

tanzanite1968

1849 B. Silliman in Amer. Jrnl. Sci. 8 384 Unionite..in general appearance..somewhat resembles scapolite or spodumene.

1855 D. T. Ansted et al. in Orr's Circle Sci.: Inorg. Nature 521/1 Antitomous Felspar, Soda Spodumene, Unionite.

1922 E. S. Dana & W. A. Ford Textbk. Mineral. (ed. 3) 530 Unionite is a very pure zoisite.

This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022).

单词	unionite
释义	unioniten. Brit. /ˈjuːnɪənʌɪt/, U.S. /ˈjunjəˌnaɪt/ Origin: From a proper name, combined with an English element. Etymons: proper name Unionville , -ite suffix¹. Etymology: < union- (in the name of Unionville, Pennsylvania, where the mineral was found in 1849: see quot. 1849) + -ite suffix¹. Mineralogy. Now rare. A form of very pure, white to yellowish-white zoisite. Unionite is a hydrated silicate of calcium and aluminium, Ca₂Al₃(SiO₄)(Si₂O₇)O(OH). Crystal system: orthorhombic. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > epidote group > [noun] > zoisite zoisite1805 thulite1820 unionite1849 tanzanite1968 1849 B. Silliman in Amer. Jrnl. Sci. 8 384 Unionite..in general appearance..somewhat resembles scapolite or spodumene. 1855 D. T. Ansted et al. in Orr's Circle Sci.: Inorg. Nature 521/1 Antitomous Felspar, Soda Spodumene, Unionite. 1922 E. S. Dana & W. A. Ford Textbk. Mineral. (ed. 3) 530 Unionite is a very pure zoisite. This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022). < n.1849
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