Nine different samples of fluorellestadite from Chelyabinsk, Kizel and Kuznetsk coal basins were studied by single-crystal X-ray diffraction analysis, thermal X-ray diffraction (25–800 °C), Infrared (IR) and Raman spectroscopy. Fluorellestadite is hexagonal, space group P6₃/m, the unit-cell parameters for the nine samples studied vary within rather small ranges: a = 9.415(5) – 9.4808(7) Å, c = 6.906(2) – 6.938(8) Å, V = 530.3(4) – 538.41(9) ų. The mineral is isotypic with apatite, the structure is based upon isolated TO₄ tetrahedra, where the T position is statistically occupied by Si⁴⁺ and S⁶⁺ with the ideal ratio Si:S equal to 1:1. The fluorine atoms are located in channels of the Ca₄[(S,Si)O₄]₆ framework oriented parallel to the c axis. The thermal expansion of fluorellestadite is almost isotropic in the temperature range 25–800 °C (for ambient temperature: α_a = 12.0·10⁻⁶ °C⁻¹, α_c = 11.9·10⁻⁶ °C⁻¹; for 800 °C: α_a = 18.2·10⁻⁶ °C⁻¹, α_c = 18.6·10⁻⁶ °C⁻¹). A similar thermal behavior had been observed for fluorapatite. Despite the same structure motifs and close conditions of formation, the samples of fluorellestadite show different S/Si/P occupancies for T site and the F/Cl/OH (X-position) ratios.

通过单晶X射线衍射分析，热X射线衍射（25–800°C），红外（IR）和拉曼光谱法研究了来自车里雅宾斯克，基泽尔和库兹涅茨克煤盆地的9种萤石沸石样品。萤石为六方晶，空间群为P 6 ₃ / m，研究的九个样品的晶胞参数在相当小的范围内变化：a  = 9.415（5）– 9.4808（7）Å，c  = 6.906（2）– 6.938（ 8）A，V  = 530.3（4） - 538.41（9）埃³。矿物与磷灰石同型，其结构基于分离的T O ₄四面体，其中TSi ⁴⁺和S ⁶⁺在统计学上占据一个位置，理想比Si：S等于1：1。氟原子位于平行于c轴的Ca ₄ [（S，Si）O ₄ ] ₆骨架的通道中。fluorellestadite的热膨胀是在温度范围25-800℃的几乎各向同性的（环境温度：α_一个 = 12.0·10 ^-6  ℃， ^-1，α _{c ^}  = 11.9·10 ^-6  ℃， ^-1 ; 800 °C：α_一个 = 18.2·10 ^-6  ℃，^-1，α_c  ＝ 18.6·10 ^-6  ℃ ^-1）。对于氟磷灰石已经观察到类似的热行为。尽管有相同的结构基序和接近的形成条件，但萤石的样品显示出T位和F / Cl / OH（ X位置）比的S / Si / P占有率不同。