一、磷矿的基本性质 1.磷矿的主要矿床类型 自然界已知磷酸盐矿有120种以上,然而其中大部分不大常见,主要的都是钙的磷酸盐矿物,且基本上可分为两大矿床类型:一种是岩浆矿床,另一种是沉积矿床。前者我们叫磷灰石(apatite),后者叫磷灰岩(phosphorite),严格说,前者是矿物,后者系钙的磷酸盐矿物及其他杂质组成的岩石。有人将磷灰岩又称为磷钙土、磷块岩、磷灰土,实际上是一个东西。但是,普通称磷灰石常常就包含了磷灰岩的含意。本文题目的磷灰石即此意义。 First, the basic nature of phosphate rock 1. Phosphate rock types of the main Phosphate ore in nature known to have more than 120 kinds, but most of them are not common, mainly calcium phosphate minerals, and can be divided into Two types of deposits: one is a magmatic deposit, and the other is a sedimentary deposit. The former is called apatite, the latter is phosphorite. Strictly speaking, the former is a mineral which is a rock composed of calcium phosphate minerals and other impurities. Some people also known as apatite, calcium phosphate rock, phosphorite, apatite, is actually a thing. However, commonly known as apatite often contains the meaning of apatite. The apatite topic in this article is of significance.