名詞 apatite:

1. a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus

ap.a.tite

n.（名詞）
A natural, variously colored calcium fluoride phosphate, Ca5F(PO 4) 3, with chlorine, hydroxyl, or carbonate sometimes replacing the fluoride. It is a source of phosphorus for plants and is used in the manufacture of fertilizers.
磷灰石：一種自然的，多色的鈣氟化物磷酸鹽，Ca5F(PO 4) 3，其氟化物成分有時被氯，羥基或碳酸鹽所取代。它是植物的一種磷肥并用來制造化肥

來源：
From Greek apatô [deceit (from its often being mistaken for other minerals)]
源自 希臘語 apatô [欺騙（由于其常被當作其他礦物）]