polyadelphiten.

Brit.

/ˌpɒlɪəˈdɛlfʌɪt/, U.S.

/ˈˌpɑliəˈdɛlˌfaɪt/

Origin: A borrowing from Greek, combined with English elements. Etymons: poly- comb. form, Greek ἀδελϕός , -ite suffix¹.

Etymology: < poly- comb. form + ancient Greek ἀδελϕός brother (see adelphous adj.) + -ite suffix¹; so named because it contains five different silicates. Compare French polyadelphite (1862 or earlier; < English).

Mineralogy. Now rare.

A brownish-yellow variety of andradite garnet.

ΘΚΠ

the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet > others

allochroite1801

pyrope1804

cinnamon-stone1805

colophonite1808

succinite1816

topazolite1819

hessonite1820

greenlandite1823

polyadelphite1829

vermeil1884

rhodolite1898

hibschite1907

plazolite1920

kimzeyite1958

majorite1970

1829 T. Thomson in Ann. Lyceum Nat. Hist. N.-Y. 3 9 (title) Analysis of polyadelphite.

1868 J. D. Dana Syst. Mineral. (ed. 5) 269 Manganesian Lime–Irongarnet... Thomson's Polyadelphite was a massive brownish-yellow kind, from Franklin, N. J.

1912 A. H. Phillips Mineralogy ii. x. 444 Andradite; calcium iron garnet... Polyadelphite is a brown variety found in large crystals..; it contains considerable manganese.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polyadelphite
释义	polyadelphiten. Brit. /ˌpɒlɪəˈdɛlfʌɪt/, U.S. /ˈˌpɑliəˈdɛlˌfaɪt/ Origin: A borrowing from Greek, combined with English elements. Etymons: poly- comb. form, Greek ἀδελϕός , -ite suffix¹. Etymology: < poly- comb. form + ancient Greek ἀδελϕός brother (see adelphous adj.) + -ite suffix¹; so named because it contains five different silicates. Compare French polyadelphite (1862 or earlier; < English). Mineralogy. Now rare. A brownish-yellow variety of andradite garnet. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > nesosilicates > [noun] > garnet > others allochroite1801 pyrope1804 cinnamon-stone1805 colophonite1808 succinite1816 topazolite1819 hessonite1820 greenlandite1823 polyadelphite1829 vermeil1884 rhodolite1898 hibschite1907 plazolite1920 kimzeyite1958 majorite1970 1829 T. Thomson in Ann. Lyceum Nat. Hist. N.-Y. 3 9 (title) Analysis of polyadelphite. 1868 J. D. Dana Syst. Mineral. (ed. 5) 269 Manganesian Lime–Irongarnet... Thomson's Polyadelphite was a massive brownish-yellow kind, from Franklin, N. J. 1912 A. H. Phillips Mineralogy ii. x. 444 Andradite; calcium iron garnet... Polyadelphite is a brown variety found in large crystals..; it contains considerable manganese. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1829
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