phosphorite

phos.pho.rite

n.（名词）
A sedimentary rock consisting predominantly of apatite and other phosphates.
磷灰岩，磷钙土：主要由磷灰石和其它磷酸盐组成的沉积岩

来源：
phosphor(us)
phosphor(us)
-ite
-ite