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自从莱河矿作为一个富含Fe~(3+)的正硅酸盐新矿物被研究以来,已有可能将铁橄榄石-莱河矿,看成一个新的矿物系列。在这个系列中已报道的有铁橄榄石、变铁铁橄榄石,高铁铁橄榄石和莱河矿。 此组矿物除铁橄榄石外,热力学性质目前还没有实验资料。为此本文运用了一些近似计算的方法对该组矿物(重点是莱河矿)的热力学参数作了估算,对莱河矿的可能成因和生成条件提出了一些初步看法。
Since Lahe mine was studied as a new ortho-silicate mineral rich in Fe 3+, it has been possible to regard fayalite-Laihe mine as a new series of minerals. In this series have been reported are fayalite, iron peridot iron, fossil iron and Lai River mine. This group of minerals in addition to fayalite, the thermodynamic properties of the current experimental data. In this paper, some approximate calculation methods are used to estimate the thermodynamic parameters of this group of minerals (the emphasis is on Laihe Mine). Some preliminary opinions on the possible genesis and formation conditions of Laihe Mine are proposed.