The most important naturally occurring phosphate is phosphateoflime or tri-calcium phosphate found as the chief ingredient of phosphatic rock bones and phosphatic guanos.
自然产生的磷酸盐中以磷酸三钙最为重要,它是磷灰石,骨骼和磷质海鸟粪的主要成分。
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It is the world's top producer of cadmium, gold, indium, iron ore, lime, lead, manganese, mercury, molybdenum, phosphate, salt, tin, tungsten, vanadium and zinc.