apatite

Noun
  1. A common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate;
    A source of phosphorus (synset 114690689)
    is a type of: mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
    subtypes: fluorapatite - a form of apatite in which fluorine predominates over chlorine
    substance holonym:
    • atomic number 15, p, phosphorus - a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
    • atomic number 65, tb, terbium - a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
    • atomic number 69, thulium, tm - a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime

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