The paper investigates trace elements and crystal-rich fluid inclusions in spodumene from rare-metal pegmatites of the Kolmozero lithium deposit in the Kola region, Russia. The main lithium mineral in the pegmatites is spodumene, which occurs in three generations, designated as Spd-I, Spd-II and Spd-III. Iron, Na and Mn are the most typical element impurities in spodumene. The Fe/Mn ratio is 7.1 in Spd-I, 12.3 in Spd-II and 13.2 in Spd-III. Spd-II contains fluid and crystal-rich fluid inclusions. The crystal-rich fluid inclusions in Spd-II originally trapped CO2-bearing aqueous fluids with dissolved alkali carbonates. The crystal-rich fluid inclusions contain zabuyelite (Li2CO3) and cristobalite (SiO2) as solid phases, which have not been reported previously from the Kolmozero rare-metal pegmatites. These minerals are assumed to have resulted from a reaction between a CO2-bearing aqueous fluid and host Spd-II and are not related to the mineral-forming system of pegmatites.

本文研究了俄罗斯科拉地区Kolmozero锂矿床的稀有金属伟晶岩中锂辉石中的微量元素和富含晶体的流体包裹体。伟晶岩中的主要锂矿物是锂辉石，锂辉石以三代出现，分别命名为Spd-I，Spd-II和Spd-III。铁，钠和锰是锂辉石中最典型的元素杂质。Fe / Mn比在Spd-I中为7.1，在Spd-II中为12.3，在Spd-III中为13.2。Spd-II包含流体和富含晶体的流体夹杂物。Spd-II中富含晶体的流体包裹体原本是用溶解的碱金属碳酸盐捕获了含CO 2的含水流体。富含晶体的流体夹杂物包含zabuyelite（Li 2 CO 3）和方石英（SiO 2）作为固相，以前从未从Kolmozero稀有金属伟晶岩中报道过。假定这些矿物是由含CO 2的含水流体与基质Spd-II之间的反应产生的，并且与伟晶岩的矿物形成系统无关。