众所周知,磷灰石族矿物是很复杂的一族矿物,在磷灰石结构内可以有多种类质同象置换,而其基本结构并无重大改变,因而它的结晶学的研究是一项复杂的任务。至今,对磷灰石的结晶学问题了解得还不很清楚,在沉积岩中分布最广、颗粒细小而又具经济价值的碳氟磷灰石所引起的争论最为激烈,关于磷灰石中(CO_3)~(2-)离子的存在形式,是长期以来进行争论的问题。本文主要就作者所做磷灰石的红外吸收光谱工作,并引用晶胞常数和化学分析数据,对此问题进行讨论。 It is well-known that apatite minerals are very complex family of minerals. There are many kinds of isomorphous substitutions in the apatite structure, but their basic structure does not change significantly. Therefore, its crystallographic study is a complex task. So far, understanding of the crystallography of apatite has not been fully understood. The most controversial cause of the most widely distributed, fine-grained and economically valuable fluorapatite is the most controversial in the apatite CO_3) ~ (2-) ions in the form of existence, has long been controversial issue. In this paper, we mainly work on the infrared absorption spectra of apatite made by the authors, and discuss the problem by using the data of unit cell constants and chemical analysis.