manganocolumbiten.

Brit.

/ˌmaŋɡ(ə)nəʊkəˈlʌmbʌɪt/, U.S.

/ˌmæŋɡənoʊkəˈləmˌbaɪt/

Origin: Formed within English, by compounding. Etymons: mangano- comb. form¹, columbite n.

Etymology: < mangano- comb. form¹ + columbite n. Compare earlier mangancolumbite n.

Mineralogy.

A greenish variety of columbite in which the iron is largely or wholly replaced by manganese.

ΚΠ

1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 733 In some varieties, manganocolumbite or manganotantalite, the iron is largely replaced by manganese.

1910 Encycl. Brit. VI. 740/2 Specimens in which the iron is largely replaced by manganese are known as manganocolumbite or manganotantalite.

1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 309/2 Columbite. A columbate (niobate) of iron, usually containing some manganese (‘manganocolumbite’).

1992 Canad. Mineralogist 30 732/1 The general sequence ferrocolumbite → manganocolumbite → manganotantalite → microlite is present at both.

This entry has been updated (OED Third Edition, September 2000; most recently modified version published online March 2022).

单词	manganocolumbite
释义	manganocolumbiten. Brit. /ˌmaŋɡ(ə)nəʊkəˈlʌmbʌɪt/, U.S. /ˌmæŋɡənoʊkəˈləmˌbaɪt/ Origin: Formed within English, by compounding. Etymons: mangano- comb. form¹, columbite n. Etymology: < mangano- comb. form¹ + columbite n. Compare earlier mangancolumbite n. Mineralogy. A greenish variety of columbite in which the iron is largely or wholly replaced by manganese. ΚΠ 1892 E. S. Dana J. D. Dana's Syst. Mineral. (ed. 6) 733 In some varieties, manganocolumbite or manganotantalite, the iron is largely replaced by manganese. 1910 Encycl. Brit. VI. 740/2 Specimens in which the iron is largely replaced by manganese are known as manganocolumbite or manganotantalite. 1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 309/2 Columbite. A columbate (niobate) of iron, usually containing some manganese (‘manganocolumbite’). 1992 Canad. Mineralogist 30 732/1 The general sequence ferrocolumbite → manganocolumbite → manganotantalite → microlite is present at both. This entry has been updated (OED Third Edition, September 2000; most recently modified version published online March 2022). < n.1892
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