辉铁陨石，FeS 的高压多形体。
A High-Pressure Polymorph of Troilite, FeS.
出版信息
Science. 1970 Nov 20;170(3960):850-1. doi: 10.1126/science.170.3960.850.
PMID:17839060
Abstract
A new polymorph of FeS was produced in a diamond-anvil cell and observed at high pressure both optically and by x-ray diffraction. Fourteen x-ray reflections of the high-pressure FeS were recorded; however, the crystal structure is unknown. This form of FeS is stable at 25 degrees C only at pressures above approximately 55 kilobars. The transition to the lower pressure polymorph, troilite, is rapid and reversible.
摘要
一种新的 FeS 多形体在金刚石压腔中生成，并在高压下通过光学和 X 射线衍射进行了观察。记录了高压 FeS 的 14 个 X 射线反射；然而，晶体结构尚不清楚。这种形式的 FeS 在 25°C 时仅在约 55 千巴以上的压力下稳定。向较低压力多形体（陨硫铁）的转变是快速和可逆的。
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