Definition of nontronite in English:

nontronite

noun ˈnɒntrənʌɪt

Mineralogy

A pale yellow or greenish crystalline clay mineral, Na₀.₃₃Fe₂ 3+(Si,Al)₄O₁₀(OH)₂, belonging to the smectite or montmorillonite group and sometimes resembling opal.

Origin

Mid 19th century; earliest use found in Charles Shepard (1804–1886). From French nontronite from Nontron, the name of the town in Dordogne, France, where the mineral was first found + -ite.

Definition of nontronite in US English:

nontronite

nounˈnɒntrənʌɪt

Mineralogy

A pale yellow or greenish crystalline clay mineral, Na₀.₃₃Fe₂ 3+(Si,Al)₄O₁₀(OH)₂, belonging to the smectite or montmorillonite group and sometimes resembling opal.

Origin

Mid 19th century; earliest use found in Charles Shepard (1804–1886). From French nontronite from Nontron, the name of the town in Dordogne, France, where the mineral was first found + -ite.

单词	nontronite
释义	Definition of nontronite in English: nontronite noun ˈnɒntrənʌɪt Mineralogy A pale yellow or greenish crystalline clay mineral, Na₀.₃₃Fe₂ 3+(Si,Al)₄O₁₀(OH)₂, belonging to the smectite or montmorillonite group and sometimes resembling opal. Origin Mid 19th century; earliest use found in Charles Shepard (1804–1886). From French nontronite from Nontron, the name of the town in Dordogne, France, where the mineral was first found + -ite. Definition of nontronite in US English: nontronite nounˈnɒntrənʌɪt Mineralogy A pale yellow or greenish crystalline clay mineral, Na₀.₃₃Fe₂ 3+(Si,Al)₄O₁₀(OH)₂, belonging to the smectite or montmorillonite group and sometimes resembling opal. Origin Mid 19th century; earliest use found in Charles Shepard (1804–1886). From French nontronite from Nontron, the name of the town in Dordogne, France, where the mineral was first found + -ite.
随便看	up ahead up alley up-along up-anchor up and about up and about up-and-comer up-and-comer up-and-coming up and coming up and do up and doing up and doing up and do something up and do something up and do sth up and down up and down up-and-downer up-and-over up and running up and running up-and-under up and under up-and-unders