Also known as: HA-
HA stands for various terms. Discover the full forms, meanings, and possible interpretations of HA across different fields and industries.
Hydroxylapatite, also called hydroxyapatite, is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), but is usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. Hydroxylapatite is the hydroxyl endmember of the complex apatite group.
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