安徽马鞍山地区假象绿松石的研究

A study of Pseudomorphous Turquoise from Maanshan Area, Anhui province

笔者在马鞍山地区发现了假象绿松石。在矿物和矿床的很多特征上，假象绿松石与结核状和细脉状绿松石是相似的。但是，假象绿松石保留了磷灰石的晶体形态，其成矿母岩是磷灰石－磁铁萨－阳起石脉岩。假象绿松石的生成需要特定的岩石、地质构造、围岩（母岩）蚀变和地表氧化等条件，因此，它在世界上是罕见的。

urquoise;pseudomorphous truquoise;Maanshan;Anhui Abstrnct Pseudomorphous turquoise was discovered by the author in Maanshanarea.Though similar to nodular and veinlet turquoise in many mineralogicalaild ore deposit cbaracterlstics,pseudomorphous turquoise preserves the crystalform of apatite,with its ore-forming parent rock being apatite-magnetite-actinolite dikes. The formation of pseudomorphous truquoise requires specificgeological conditions such as rock,geological structure,wall rock(parent rock)alteration and surface oxidation, and therefore this minerai is rarely seen in the world.