Tourmaline rare-earth element (lanthanides + Y) patterns could provide valuable geological information as tourmalines are the most abundant borosilicates on Earth and are stable at extreme PT conditions. The lanthanide-bearing tourmalines were synthesized for the first time in a series of high- (4 GPa) and low-pressure (0.2 GPa) hydrothermal experiments. We have found that Ln-content (Ln = La³⁺, Nd³⁺, Eu³⁺ and Yb³⁺) in synthetic tourmalines varies significantly (1.13–8.35 wt% Ln₂O₃) with Yb < La ≤ Nd < Eu independent of pressure conditions. Ln-content in synthetic tourmalines, obtained at low pressure is 2–3 times higher, than those from high-pressure experiments. The Nd- and Eu-rich synthetic tourmalines exhibit cathodo- photoluminescence properties (blue and violet luminescence colors for Nd and Eu, respectively), which confirms trivalent state of Ln in tourmaline structure. Single-crystal X-ray diffraction data for synthetic tourmalines (Nd-rich a 15.893(1), c 7.130(1) Å; Eu-rich a 15.903(5), c 7.168(3) Å) show that Eu³⁺ and Nd³⁺ occupy the 9-coordinated X-site in the tourmaline structure. The general formula of obtained synthetic tourmalines can be expressed as Ln³⁺_1-x (Mg,Al)₃ (Al,Mg)₆ (Si₆O₁₈) (BO₃)₃ (OH,O)₃ (OH,O) (0.05 ≤ x ≤ 0.97). The crystal-chemical features and lanthanide speciation in synthesized tourmalines are herein discussed and compared to natural and synthetic compounds.

电气石稀土元素（镧系元素 + Y）模式可以提供有价值的地质信息，因为电气石是地球上最丰富的硼硅酸盐，并且在极端PT条件下是稳定的。含镧系元素的电气石是在一系列高压 (4 GPa) 和低压 (0.2 GPa) 热液实验中首次合成的。我们发现合成电气石中的Ln含量（Ln  = La ³⁺、Nd ³⁺、Eu ³⁺和 Yb ³⁺）变化很大（1.13–8.35 wt% Ln ₂ O ₃），其中 Yb < La ≤ Nd < Eu与压力条件无关。LN在低压下获得的合成电气石中的 - 含量比高压实验高 2-3 倍。富含 Nd 和 Eu 的合成电气石表现出阴极光致发光特性（Nd 和 Eu 分别为蓝色和紫色发光颜色），这证实了电气石结构中Ln 的三价态。合成电气石的单晶 X 射线衍射数据（Nd-rich a 15.893(1), c 7.130(1) Å；Eu-rich a 15.903(5), c 7.168(3) Å）表明 Eu ³⁺和Nd ³⁺占据电气石结构中的 9 配位X位点。所得合成碧玺的通式可表示为Ln ³⁺ _{1- x} (Mg,Al) ₃ (Al,Mg) ₆ (Si ₆ O ₁₈ ) (BO ₃ ) ₃ (OH,O) ₃ (OH,O) (0.05 ≤  x  ≤ 0.97)。本文讨论了合成电气石中的晶体化学特征和镧系元素形态，并将其与天然和合成化合物进行了比较。