Zolenskyite (IMA 2020-070), FeCr2S4, is a new sulfide mineral that occurs within troilite, with clinoenstatite and tridymite, in the matrix of the Indarch meteorite, an EH4 enstatite chondrite. The mean chemical composition of zolenskyite determined by electron probe microanalysis, is (wt%) S 43.85, Cr 35.53, Fe 18.94, Mn 0.68, Ca 0.13, total 99.13, yielding an empirical formula of Fe0.99Mn0.04Ca0.01Cr1.99S3.98. The ideal formula is FeCr2S4. Electron backscatter diffraction shows that zolenskyite has the C2/m CrNb2Se4-Cr3S4-type structure of synthetic FeCr2S4, which has a = 12.84(1) Å, b = 3.44(1) Å, c = 5.94(1) Å, β = 117(1)°, V = 234(6) Å3, and Z = 2. The calculated density using the measured composition is 4.09 g/cm3. Zolenskyite is a monoclinic polymorph of daubréelite. It may be a high-pressure phase, formed from daubréelite at high pressures (several gigapascals) and moderate temperatures in highly shocked regions of the EH parent asteroid before becoming incorporated into Indarch via impact mixing. Zolenskyite survived moderate annealing of the Indarch whole-rock. The new mineral is named in honor of Michael E. Zolensky, an esteemed cosmochemist and mineralo-gist at NASA’s Johnson Space Center, for his contributions to research on extraterrestrial materials, including enstatite chondrites.

中文翻译：

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Zolenskyite，FeCr2S4，一种来自 Indarch 陨石的新硫化物矿物

Zolenskyite (IMA 2020-070)，FeCr2S4，是一种新的硫化物矿物，出现在陨石中，与斜英辉石和鳞辉石一起出现在 Indarch 陨石（一种 EH4 顽火辉石球粒陨石）的基质中。用电子探针显微分析法测定佐仑斯基石的平均化学成分为（wt%）S 43.85、Cr 35.53、Fe 18.94、Mn 0.68、Ca 0.13，合计99.13，得出经验式Fe0.99Mn0.04Ca0.01Cr1.99S3。 98. 理想的配方是 FeCr2S4。电子背散射衍射表明，佐伦斯基石具有合成FeCr2S4的C2/m CrNb2Se4-Cr3S4型结构，a = 12.84(1) Å, b = 3.44(1) Å, c = 5.94(1) Å, β = 117 (1)°，V = 234(6) Å3，Z = 2。使用测量的成分计算出的密度为 4.09 g/cm3。Zolenskyite 是 daubréelite 的单斜晶型多晶型物。这可能是一个高压阶段，在高压（几吉帕斯卡）和中等温度下在 EH 母小行星的高度冲击区域由 daubréelite 形成，然后通过撞击混合并入 Indarch。Zolenskyite 在 Indarch 全岩的适度退火中幸存下来。这种新矿物的命名是为了纪念美国宇航局约翰逊航天中心受人尊敬的宇宙化学家和矿物学家迈克尔·E·佐伦斯基，以表彰他对包括顽火辉石球粒陨石在内的地外材料研究的贡献。