apatite
a puh tahyt
- n a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus
- Enamel and apatite consist of fibres made up of hexagonal crystals in which precisely the same elements (calcium, oxygen, phosphorus) have precisely the same atomic arrangement.
- ON THE MEND Kyoto University doctors have used slivers of titanium coated with a mixture of the mineral apatite and titanium oxide to make stronger repairs to broken bones.