火成磷灰石矿床,在某些国家,特别在尚未发现或只有不利于商业开采的沉积磷矿的一些国家中日趋重要。世界上商品磷酸盐岩和精矿的总产量,在1978年约1.25亿吨,其中火成矿床的磷灰石产量超过1900万吨(表1),占世界总产量的15%以上。虽然其产量低于1977年(当时火成磷矿产量占世界产量的18%),但比过去十多年增加了1100万吨。这主要是由于苏联科拉半岛的希宾(Khibiny)矿山开采规模扩大所致。目前开采 The pyro-apatite deposits are becoming increasingly important in some countries, especially in some countries where undiscovered or only sedimentary phosphate is not commercially exploitable. The world’s total production of phosphate rocks and concentrates was about 125 million tons in 1978, of which more than 19 million tons were apatite beds (Table 1), accounting for more than 15% of the world total. Although its production was lower than in 1977 (at that time, the amount of pyrophosphorite produced was 18% of world production), it increased by 11 million tons over the past decade. This is mainly due to the expansion of the Khibiny mine in the Kola Peninsula in the Soviet Union. Currently mining