Abstract—Sulfur-containing sodalite, hackmanite, has been found for the first time in alkaline pegmatites of the Inagli alkaline–ultramafic massif, South Yakutia, Russia. Pegmatites with hackmanite have an amphibole–orthoclase (±diopside) and microcline–albite–amphibole (±aegirine) composition. The chemical composition of hackmanite (electron microprobe, wt %) is 25.60 Na₂O, 31.56 Al₂O₃, 37.20 SiO₂, 7.32 Cl, 0.57 S, 0.09 K₂O, 0.03 CaO, 0.04 FeO. The empirical formula, calculated on the basis of 12 (Si + Al) cations is, Na_8.07K_0.02\({\text{Fe}}_{{{\text{0}}{\text{.01}}}}^{{{\text{2 + }}}}\)(Al_5.96Si_6.04)_{Σ = 12}O_24.09(Cl_1.65S_0.17)_Σ = 1.82. The optical absorption, luminescence, and excitation spectra of the mineral revealed the presence of \({\text{O}}_{2}^{ - }\) and \({\text{S}}_{2}^{ - }\) sites. The EPR spectrum indicates the absence of a vacancy charge balance mechanism in the studied hackmanite sample. Thus, additional anions in hackmanite of the Inagli massif are Cl^– and \({\text{S}}_{2}^{ - }\) with an S–S bond length of 2.06 Å. According to the structure data, hackmanite does not contain S^2–, \({\text{S}}_{2}^{{2 - }}\), and (SO₄)^2– anions.

摘要—在俄罗斯南雅库特 Inagli 碱性-超镁铁质地块的碱性伟晶岩中首次发现了含硫方钠石，hackmanite。含磷辉石的伟晶岩具有闪石-正长石（±透辉石）和微斜-钠长石-闪石（±aegirine）组成。hackmanite（电子探针，wt%）的化学成分为25.60 Na ₂ O、31.56 Al ₂ O ₃、37.20 SiO ₂、7.32 Cl、0.57 S、0.09 K ₂ O、0.03 CaO、0.04 FeO。根据 12 (Si + Al) 阳离子计算的经验公式为 Na _8.07 K _0.02 \({\text{Fe}}_{{{\text{0}}{\text{.01}}} }^{{{\text{2 + }}}}\) (Al _5.96 Si_6.04 ) _{Σ = 12} O _24.09 (Cl _1.65 S _0.17 ) _{Σ = 1.82}。矿物的光学吸收、发光和激发光谱揭示了\({\text{O}}_{2}^{ - }\)和\({\text{S}}_{2}^ { - }\)个网站。EPR 谱表明在所研究的hackmanite 样品中不存在空位电荷平衡机制。因此，Inagli 地块的 hackmanite 中的附加阴离子是 Cl ^-和\({\text{S}}_{2}^{ - }\)，S-S 键长为 2.06 Å。根据结构数据，hackmanite 不含 S ^2–、\({\text{S}}_{2}^{{2 - }}\)和 (SO₄ ) ^2–阴离子。