Bjurböle L/LL4 ordinary chondrite was studied using scanning electron microscopy with energy dispersive spectroscopy, Raman spectroscopy, X-ray diffraction, magnetization measurements and Mössbauer spectroscopy. The phase composition and the relative iron fractions in the iron-bearing phases were determined. The unit cell parameters for olivine, orthopyroxene and clinopyroxene are similar to those observed in the other ordinary chondrites. The higher contents of forsterite and enstatite were detected by Raman spectroscopy. Magnetization measurements showed that the temperature of the ferrimagnetic-paramagnetic phase transition in chromite is around 57 K and the saturation magnetic moment is ∼7 emu/g. The values of the ⁵⁷Fe hyperfine parameters for all components in the Bjurböle Mössbauer spectrum were determined and related to the corresponding iron-bearing phases. The relative iron fractions in Bjurböle and the ⁵⁷Fe hyperfine parameters of olivine, orthopyroxene and troilite were compared with the data obtained for the selected L and LL ordinary chondrites. The Fe²⁺ occupancies of the M1 and M2 sites in silicate crystals were determined using both X-ray diffraction and Mössbauer spectroscopy. Then, the temperatures of equilibrium cation distribution were determined, using two independent techniques, for olivine as 666 K and 850 K, respectively, and for orthopyroxene as 958 K and 1136 K, respectively. Implications of X-ray diffraction, magnetization measurements and Mössbauer spectroscopy data for the classification of the studied Bjurböle material indicate its composition being close to the LL group of ordinary chondrites.

使用扫描电子显微镜，能量色散光谱，拉曼光谱，X射线衍射，磁化强度测量和Mössbauer光谱研究了BjurböleL / LL4普通球粒陨石。确定了含铁相中的相组成和相对铁含量。橄榄石，邻比邻苯二酚和斜向吡咯的晶胞参数与其他普通球粒陨石中观察到的相似。通过拉曼光谱法检测到较高的镁橄榄石和顽辉石含量。磁化测量表明，亚铬铁矿中亚铁-顺磁相变的温度约为57 K，饱和磁矩约为7 emu / g。⁵⁷的值确定了BjurböleMössbauer光谱中所有组分的Fe超细参数，并与相应的含铁相相关。将Bjurböle中的相对铁含量以及橄榄石，邻辉石和tr石的⁵⁷ Fe超细参数与所选L和LL普通球粒陨石的数据进行了比较。铁²⁺使用X射线衍射和Mössbauer光谱法测定硅酸盐晶体中M1和M2的位置。然后，使用两种独立的技术确定平衡阳离子分布的温度，橄榄石分别为666 K和850 K，以及邻二甲苯为958 K和1136K。X射线衍射，磁化强度测量和穆斯堡尔光谱数据对所研究的Bjurböle材料分类的含义表明，其成分接近于普通球粒陨石的LL组。