Troy Light

Japanese: トロイライト
Troy Light

A mineral found in meteorites and iron meteorites, also known as monosulfite. Most of the iron sulfides found in the Earth's crust are nonstoichiometric iron sulfide(II) (Fe 1- x S), which is deficient in iron atoms, but troilite is almost

Fe II : S = 1:1
Troilite is a stoichiometric iron(II) sulfide. Troilite is known to coexist in pyrrhotite, a nonstoichiometric iron(II) sulfide with iron or iron deficiency (Fe 1- x S) in the Earth's crust, but only in very small amounts. The lead isotope ratio ( 206 Pb/ 204 Pb) and sulfur isotope ratio ( 32 S/ 34 S) of troilite found in meteorites and iron meteorites are used to determine the age of the Earth and geological dating.

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

いん石やいん鉄中に見つかる鉱物で,単硫鉄鉱ともいう.地球上で見いだされる地殻中の硫化鉄は,そのほとんどが鉄原子が欠損した非化学量論的硫化鉄(Ⅱ)(Fe1-xS)であるが,トロイライトは,ほぼ

Fe:S = 1:1
の化学量論的硫化鉄(Ⅱ)である.トロイライトは,地殻中では鉄または鉄原子が欠損した非化学量論的硫化鉄(Ⅱ)(Fe1-xS)の磁硫鉄鉱(ピロータイト,pyrrhotite)中に共存することが知られているが,ごくわずかにしか存在しない.いん石やいん鉄中に見いだされるトロイライトの鉛同位体比(206Pb/204Pb)や硫黄同位体比(32S/34S)は地球の年齢測定や地質年代測定に利用される.

出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報

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